646800120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{19319}}^1$

素因数の和:19370

約数の個数: 128

約数和(自身を含む): 2225664000

約数和(自身を除く): 1578863880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 90, 93, 108, 120, 124, 135, 155, 180, 186, 216, 248, 270, 279, 310, 360, 372, 465, 540, 558, 620, 744, 837, 930, 1080, 1116, 1240, 1395, 1674, 1860, 2232, 2790, 3348, 3720, 4185, 5580, 6696, 8370, 11160, 16740, 19319, 33480, 38638, 57957, 77276, 96595, 115914, 154552, 173871, 193190, 231828, 289785, 347742, 386380, 463656, 521613, 579570, 598889, 695484, 772760, 869355, 1043226, 1159140, 1197778, 1390968, 1738710, 1796667, 2086452, 2318280, 2395556, 2608065, 2994445, 3477420, 3593334, 4172904, 4791112, 5216130, 5390001, 5988890, 6954840, 7186668, 8983335, 10432260, 10780002, 11977780, 14373336, 16170003, 17966670, 20864520, 21560004, 23955560, 26950005, 32340006, 35933340, 43120008, 53900010, 64680012, 71866680, 80850015, 107800020, 129360024, 161700030, 215600040, 323400060, 646800120]

約数ペア:

[(1, 646800120), (2, 323400060), (3, 215600040), (4, 161700030), (5, 129360024), (6, 107800020), (8, 80850015), (9, 71866680), (10, 64680012), (12, 53900010), (15, 43120008), (18, 35933340), (20, 32340006), (24, 26950005), (27, 23955560), (30, 21560004), (31, 20864520), (36, 17966670), (40, 16170003), (45, 14373336), (54, 11977780), (60, 10780002), (62, 10432260), (72, 8983335), (90, 7186668), (93, 6954840), (108, 5988890), (120, 5390001), (124, 5216130), (135, 4791112), (155, 4172904), (180, 3593334), (186, 3477420), (216, 2994445), (248, 2608065), (270, 2395556), (279, 2318280), (310, 2086452), (360, 1796667), (372, 1738710), (465, 1390968), (540, 1197778), (558, 1159140), (620, 1043226), (744, 869355), (837, 772760), (930, 695484), (1080, 598889), (1116, 579570), (1240, 521613), (1395, 463656), (1674, 386380), (1860, 347742), (2232, 289785), (2790, 231828), (3348, 193190), (3720, 173871), (4185, 154552), (5580, 115914), (6696, 96595), (8370, 77276), (11160, 57957), (16740, 38638), (19319, 33480)]