31911660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 107557632

約数和(自身を除く): 75645972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 71, 90, 99, 110, 132, 142, 165, 180, 198, 213, 220, 227, 284, 330, 355, 396, 426, 454, 495, 639, 660, 681, 710, 781, 852, 908, 990, 1065, 1135, 1278, 1362, 1420, 1562, 1980, 2043, 2130, 2270, 2343, 2497, 2556, 2724, 3124, 3195, 3405, 3905, 4086, 4260, 4540, 4686, 4994, 6390, 6810, 7029, 7491, 7810, 8172, 9372, 9988, 10215, 11715, 12485, 12780, 13620, 14058, 14982, 15620, 16117, 20430, 22473, 23430, 24970, 28116, 29964, 32234, 35145, 37455, 40860, 44946, 46860, 48351, 49940, 64468, 70290, 74910, 80585, 89892, 96702, 112365, 140580, 145053, 149820, 161170, 177287, 193404, 224730, 241755, 290106, 322340, 354574, 449460, 483510, 531861, 580212, 709148, 725265, 886435, 967020, 1063722, 1450530, 1595583, 1772870, 2127444, 2659305, 2901060, 3191166, 3545740, 5318610, 6382332, 7977915, 10637220, 15955830, 31911660]

約数ペア:

[(1, 31911660), (2, 15955830), (3, 10637220), (4, 7977915), (5, 6382332), (6, 5318610), (9, 3545740), (10, 3191166), (11, 2901060), (12, 2659305), (15, 2127444), (18, 1772870), (20, 1595583), (22, 1450530), (30, 1063722), (33, 967020), (36, 886435), (44, 725265), (45, 709148), (55, 580212), (60, 531861), (66, 483510), (71, 449460), (90, 354574), (99, 322340), (110, 290106), (132, 241755), (142, 224730), (165, 193404), (180, 177287), (198, 161170), (213, 149820), (220, 145053), (227, 140580), (284, 112365), (330, 96702), (355, 89892), (396, 80585), (426, 74910), (454, 70290), (495, 64468), (639, 49940), (660, 48351), (681, 46860), (710, 44946), (781, 40860), (852, 37455), (908, 35145), (990, 32234), (1065, 29964), (1135, 28116), (1278, 24970), (1362, 23430), (1420, 22473), (1562, 20430), (1980, 16117), (2043, 15620), (2130, 14982), (2270, 14058), (2343, 13620), (2497, 12780), (2556, 12485), (2724, 11715), (3124, 10215), (3195, 9988), (3405, 9372), (3905, 8172), (4086, 7810), (4260, 7491), (4540, 7029), (4686, 6810), (4994, 6390)]