31287060

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:148

約数の個数: 240

約数和(自身を含む): 117089280

約数和(自身を除く): 85802220

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 31, 35, 36, 42, 45, 54, 60, 62, 63, 70, 81, 84, 89, 90, 93, 105, 108, 124, 126, 135, 140, 155, 162, 178, 180, 186, 189, 210, 217, 252, 267, 270, 279, 310, 315, 324, 356, 372, 378, 405, 420, 434, 445, 465, 534, 540, 558, 567, 620, 623, 630, 651, 756, 801, 810, 837, 868, 890, 930, 945, 1068, 1085, 1116, 1134, 1246, 1260, 1302, 1335, 1395, 1602, 1620, 1674, 1780, 1860, 1869, 1890, 1953, 2170, 2268, 2403, 2492, 2511, 2604, 2670, 2759, 2790, 2835, 3115, 3204, 3255, 3348, 3738, 3780, 3906, 4005, 4185, 4340, 4806, 5022, 5340, 5518, 5580, 5607, 5670, 5859, 6230, 6510, 7209, 7476, 7812, 8010, 8277, 8370, 9345, 9612, 9765, 10044, 11036, 11214, 11340, 11718, 12015, 12460, 12555, 13020, 13795, 14418, 16020, 16554, 16740, 16821, 17577, 18690, 19313, 19530, 22428, 23436, 24030, 24831, 25110, 27590, 28035, 28836, 29295, 33108, 33642, 35154, 36045, 37380, 38626, 39060, 41385, 48060, 49662, 50220, 50463, 55180, 56070, 57939, 58590, 67284, 70308, 72090, 74493, 77252, 82770, 84105, 87885, 96565, 99324, 100926, 112140, 115878, 117180, 124155, 144180, 148986, 165540, 168210, 173817, 175770, 193130, 201852, 223479, 231756, 248310, 252315, 289695, 297972, 336420, 347634, 351540, 372465, 386260, 446958, 496620, 504630, 521451, 579390, 695268, 744930, 869085, 893916, 1009260, 1042902, 1117395, 1158780, 1489860, 1564353, 1738170, 2085804, 2234790, 2607255, 3128706, 3476340, 4469580, 5214510, 6257412, 7821765, 10429020, 15643530, 31287060]

約数ペア:

[(1, 31287060), (2, 15643530), (3, 10429020), (4, 7821765), (5, 6257412), (6, 5214510), (7, 4469580), (9, 3476340), (10, 3128706), (12, 2607255), (14, 2234790), (15, 2085804), (18, 1738170), (20, 1564353), (21, 1489860), (27, 1158780), (28, 1117395), (30, 1042902), (31, 1009260), (35, 893916), (36, 869085), (42, 744930), (45, 695268), (54, 579390), (60, 521451), (62, 504630), (63, 496620), (70, 446958), (81, 386260), (84, 372465), (89, 351540), (90, 347634), (93, 336420), (105, 297972), (108, 289695), (124, 252315), (126, 248310), (135, 231756), (140, 223479), (155, 201852), (162, 193130), (178, 175770), (180, 173817), (186, 168210), (189, 165540), (210, 148986), (217, 144180), (252, 124155), (267, 117180), (270, 115878), (279, 112140), (310, 100926), (315, 99324), (324, 96565), (356, 87885), (372, 84105), (378, 82770), (405, 77252), (420, 74493), (434, 72090), (445, 70308), (465, 67284), (534, 58590), (540, 57939), (558, 56070), (567, 55180), (620, 50463), (623, 50220), (630, 49662), (651, 48060), (756, 41385), (801, 39060), (810, 38626), (837, 37380), (868, 36045), (890, 35154), (930, 33642), (945, 33108), (1068, 29295), (1085, 28836), (1116, 28035), (1134, 27590), (1246, 25110), (1260, 24831), (1302, 24030), (1335, 23436), (1395, 22428), (1602, 19530), (1620, 19313), (1674, 18690), (1780, 17577), (1860, 16821), (1869, 16740), (1890, 16554), (1953, 16020), (2170, 14418), (2268, 13795), (2403, 13020), (2492, 12555), (2511, 12460), (2604, 12015), (2670, 11718), (2759, 11340), (2790, 11214), (2835, 11036), (3115, 10044), (3204, 9765), (3255, 9612), (3348, 9345), (3738, 8370), (3780, 8277), (3906, 8010), (4005, 7812), (4185, 7476), (4340, 7209), (4806, 6510), (5022, 6230), (5340, 5859), (5518, 5670), (5580, 5607)]