47383980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 157199616

約数和(自身を除く): 109815636

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 71, 84, 98, 105, 140, 142, 147, 196, 210, 213, 227, 245, 284, 294, 355, 420, 426, 454, 490, 497, 588, 681, 710, 735, 852, 908, 980, 994, 1065, 1135, 1362, 1420, 1470, 1491, 1589, 1988, 2130, 2270, 2485, 2724, 2940, 2982, 3178, 3405, 3479, 4260, 4540, 4767, 4970, 5964, 6356, 6810, 6958, 7455, 7945, 9534, 9940, 10437, 11123, 13620, 13916, 14910, 15890, 16117, 17395, 19068, 20874, 22246, 23835, 29820, 31780, 32234, 33369, 34790, 41748, 44492, 47670, 48351, 52185, 55615, 64468, 66738, 69580, 80585, 95340, 96702, 104370, 111230, 112819, 133476, 161170, 166845, 193404, 208740, 222460, 225638, 241755, 322340, 333690, 338457, 451276, 483510, 564095, 667380, 676914, 789733, 967020, 1128190, 1353828, 1579466, 1692285, 2256380, 2369199, 3158932, 3384570, 3948665, 4738398, 6769140, 7897330, 9476796, 11845995, 15794660, 23691990, 47383980]

約数ペア:

[(1, 47383980), (2, 23691990), (3, 15794660), (4, 11845995), (5, 9476796), (6, 7897330), (7, 6769140), (10, 4738398), (12, 3948665), (14, 3384570), (15, 3158932), (20, 2369199), (21, 2256380), (28, 1692285), (30, 1579466), (35, 1353828), (42, 1128190), (49, 967020), (60, 789733), (70, 676914), (71, 667380), (84, 564095), (98, 483510), (105, 451276), (140, 338457), (142, 333690), (147, 322340), (196, 241755), (210, 225638), (213, 222460), (227, 208740), (245, 193404), (284, 166845), (294, 161170), (355, 133476), (420, 112819), (426, 111230), (454, 104370), (490, 96702), (497, 95340), (588, 80585), (681, 69580), (710, 66738), (735, 64468), (852, 55615), (908, 52185), (980, 48351), (994, 47670), (1065, 44492), (1135, 41748), (1362, 34790), (1420, 33369), (1470, 32234), (1491, 31780), (1589, 29820), (1988, 23835), (2130, 22246), (2270, 20874), (2485, 19068), (2724, 17395), (2940, 16117), (2982, 15890), (3178, 14910), (3405, 13916), (3479, 13620), (4260, 11123), (4540, 10437), (4767, 9940), (4970, 9534), (5964, 7945), (6356, 7455), (6810, 6958)]