78289740

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:294

約数の個数: 144

約数和(自身を含む): 250417440

約数和(自身を除く): 172127700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 89, 90, 108, 135, 162, 178, 180, 181, 243, 267, 270, 324, 356, 362, 405, 445, 486, 534, 540, 543, 724, 801, 810, 890, 905, 972, 1068, 1086, 1215, 1335, 1602, 1620, 1629, 1780, 1810, 2172, 2403, 2430, 2670, 2715, 3204, 3258, 3620, 4005, 4806, 4860, 4887, 5340, 5430, 6516, 7209, 8010, 8145, 9612, 9774, 10860, 12015, 14418, 14661, 16020, 16109, 16290, 19548, 21627, 24030, 24435, 28836, 29322, 32218, 32580, 36045, 43254, 43983, 48060, 48327, 48870, 58644, 64436, 72090, 73305, 80545, 86508, 87966, 96654, 97740, 108135, 144180, 144981, 146610, 161090, 175932, 193308, 216270, 219915, 241635, 289962, 293220, 322180, 432540, 434943, 439830, 483270, 579924, 724905, 869886, 879660, 966540, 1304829, 1449810, 1739772, 2174715, 2609658, 2899620, 3914487, 4349430, 5219316, 6524145, 7828974, 8698860, 13048290, 15657948, 19572435, 26096580, 39144870, 78289740]

約数ペア:

[(1, 78289740), (2, 39144870), (3, 26096580), (4, 19572435), (5, 15657948), (6, 13048290), (9, 8698860), (10, 7828974), (12, 6524145), (15, 5219316), (18, 4349430), (20, 3914487), (27, 2899620), (30, 2609658), (36, 2174715), (45, 1739772), (54, 1449810), (60, 1304829), (81, 966540), (89, 879660), (90, 869886), (108, 724905), (135, 579924), (162, 483270), (178, 439830), (180, 434943), (181, 432540), (243, 322180), (267, 293220), (270, 289962), (324, 241635), (356, 219915), (362, 216270), (405, 193308), (445, 175932), (486, 161090), (534, 146610), (540, 144981), (543, 144180), (724, 108135), (801, 97740), (810, 96654), (890, 87966), (905, 86508), (972, 80545), (1068, 73305), (1086, 72090), (1215, 64436), (1335, 58644), (1602, 48870), (1620, 48327), (1629, 48060), (1780, 43983), (1810, 43254), (2172, 36045), (2403, 32580), (2430, 32218), (2670, 29322), (2715, 28836), (3204, 24435), (3258, 24030), (3620, 21627), (4005, 19548), (4806, 16290), (4860, 16109), (4887, 16020), (5340, 14661), (5430, 14418), (6516, 12015), (7209, 10860), (8010, 9774), (8145, 9612)]