78471540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 288

約数和(自身を含む): 293529600

約数和(自身を除く): 215058060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 41, 42, 45, 49, 60, 62, 63, 70, 82, 84, 90, 93, 98, 105, 123, 124, 126, 140, 147, 155, 164, 180, 186, 196, 205, 210, 217, 245, 246, 252, 279, 287, 294, 310, 315, 343, 369, 372, 410, 420, 434, 441, 465, 490, 492, 558, 574, 588, 615, 620, 630, 651, 686, 735, 738, 820, 861, 868, 882, 930, 980, 1029, 1085, 1116, 1148, 1230, 1260, 1271, 1302, 1372, 1395, 1435, 1470, 1476, 1519, 1715, 1722, 1764, 1845, 1860, 1953, 2009, 2058, 2170, 2205, 2460, 2542, 2583, 2604, 2790, 2870, 2940, 3038, 3087, 3255, 3430, 3444, 3690, 3813, 3906, 4018, 4116, 4305, 4340, 4410, 4557, 5084, 5145, 5166, 5580, 5740, 6027, 6076, 6174, 6355, 6510, 6860, 7380, 7595, 7626, 7812, 8036, 8610, 8820, 8897, 9114, 9765, 10045, 10290, 10332, 10633, 11439, 12054, 12348, 12710, 12915, 13020, 13671, 14063, 15190, 15252, 15435, 17220, 17794, 18081, 18228, 19065, 19530, 20090, 20580, 21266, 22785, 22878, 24108, 25420, 25830, 26691, 27342, 28126, 30135, 30380, 30870, 31899, 35588, 36162, 38130, 39060, 40180, 42189, 42532, 44485, 45570, 45756, 51660, 53165, 53382, 54684, 56252, 57195, 60270, 61740, 62279, 63798, 68355, 70315, 72324, 76260, 80073, 84378, 88970, 90405, 91140, 95697, 106330, 106764, 114390, 120540, 124558, 126567, 127596, 133455, 136710, 140630, 159495, 160146, 168756, 177940, 180810, 186837, 191394, 210945, 212660, 228780, 249116, 253134, 266910, 273420, 281260, 311395, 318990, 320292, 361620, 373674, 382788, 400365, 421890, 435953, 478485, 506268, 533820, 560511, 622790, 632835, 637980, 747348, 800730, 843780, 871906, 934185, 956970, 1121022, 1245580, 1265670, 1307859, 1601460, 1743812, 1868370, 1913940, 2179765, 2242044, 2531340, 2615718, 2802555, 3736740, 3923577, 4359530, 5231436, 5605110, 6539295, 7847154, 8719060, 11210220, 13078590, 15694308, 19617885, 26157180, 39235770, 78471540]

約数ペア:

[(1, 78471540), (2, 39235770), (3, 26157180), (4, 19617885), (5, 15694308), (6, 13078590), (7, 11210220), (9, 8719060), (10, 7847154), (12, 6539295), (14, 5605110), (15, 5231436), (18, 4359530), (20, 3923577), (21, 3736740), (28, 2802555), (30, 2615718), (31, 2531340), (35, 2242044), (36, 2179765), (41, 1913940), (42, 1868370), (45, 1743812), (49, 1601460), (60, 1307859), (62, 1265670), (63, 1245580), (70, 1121022), (82, 956970), (84, 934185), (90, 871906), (93, 843780), (98, 800730), (105, 747348), (123, 637980), (124, 632835), (126, 622790), (140, 560511), (147, 533820), (155, 506268), (164, 478485), (180, 435953), (186, 421890), (196, 400365), (205, 382788), (210, 373674), (217, 361620), (245, 320292), (246, 318990), (252, 311395), (279, 281260), (287, 273420), (294, 266910), (310, 253134), (315, 249116), (343, 228780), (369, 212660), (372, 210945), (410, 191394), (420, 186837), (434, 180810), (441, 177940), (465, 168756), (490, 160146), (492, 159495), (558, 140630), (574, 136710), (588, 133455), (615, 127596), (620, 126567), (630, 124558), (651, 120540), (686, 114390), (735, 106764), (738, 106330), (820, 95697), (861, 91140), (868, 90405), (882, 88970), (930, 84378), (980, 80073), (1029, 76260), (1085, 72324), (1116, 70315), (1148, 68355), (1230, 63798), (1260, 62279), (1271, 61740), (1302, 60270), (1372, 57195), (1395, 56252), (1435, 54684), (1470, 53382), (1476, 53165), (1519, 51660), (1715, 45756), (1722, 45570), (1764, 44485), (1845, 42532), (1860, 42189), (1953, 40180), (2009, 39060), (2058, 38130), (2170, 36162), (2205, 35588), (2460, 31899), (2542, 30870), (2583, 30380), (2604, 30135), (2790, 28126), (2870, 27342), (2940, 26691), (3038, 25830), (3087, 25420), (3255, 24108), (3430, 22878), (3444, 22785), (3690, 21266), (3813, 20580), (3906, 20090), (4018, 19530), (4116, 19065), (4305, 18228), (4340, 18081), (4410, 17794), (4557, 17220), (5084, 15435), (5145, 15252), (5166, 15190), (5580, 14063), (5740, 13671), (6027, 13020), (6076, 12915), (6174, 12710), (6355, 12348), (6510, 12054), (6860, 11439), (7380, 10633), (7595, 10332), (7626, 10290), (7812, 10045), (8036, 9765), (8610, 9114), (8820, 8897)]