42831880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^2$

素因数の和:120

約数の個数: 144

約数和(自身を含む): 123745860

約数和(自身を除く): 80913980

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 41, 49, 52, 56, 65, 70, 82, 91, 98, 104, 130, 140, 164, 182, 196, 205, 245, 260, 280, 287, 328, 364, 392, 410, 455, 490, 520, 533, 574, 637, 728, 820, 910, 980, 1066, 1148, 1274, 1435, 1640, 1681, 1820, 1960, 2009, 2132, 2296, 2548, 2665, 2870, 3185, 3362, 3640, 3731, 4018, 4264, 5096, 5330, 5740, 6370, 6724, 7462, 8036, 8405, 10045, 10660, 11480, 11767, 12740, 13448, 14924, 16072, 16810, 18655, 20090, 21320, 21853, 23534, 25480, 26117, 29848, 33620, 37310, 40180, 43706, 47068, 52234, 58835, 67240, 74620, 80360, 82369, 87412, 94136, 104468, 109265, 117670, 130585, 149240, 152971, 164738, 174824, 208936, 218530, 235340, 261170, 305942, 329476, 411845, 437060, 470680, 522340, 611884, 658952, 764855, 823690, 874120, 1044680, 1070797, 1223768, 1529710, 1647380, 2141594, 3059420, 3294760, 4283188, 5353985, 6118840, 8566376, 10707970, 21415940, 42831880]

約数ペア:

[(1, 42831880), (2, 21415940), (4, 10707970), (5, 8566376), (7, 6118840), (8, 5353985), (10, 4283188), (13, 3294760), (14, 3059420), (20, 2141594), (26, 1647380), (28, 1529710), (35, 1223768), (40, 1070797), (41, 1044680), (49, 874120), (52, 823690), (56, 764855), (65, 658952), (70, 611884), (82, 522340), (91, 470680), (98, 437060), (104, 411845), (130, 329476), (140, 305942), (164, 261170), (182, 235340), (196, 218530), (205, 208936), (245, 174824), (260, 164738), (280, 152971), (287, 149240), (328, 130585), (364, 117670), (392, 109265), (410, 104468), (455, 94136), (490, 87412), (520, 82369), (533, 80360), (574, 74620), (637, 67240), (728, 58835), (820, 52234), (910, 47068), (980, 43706), (1066, 40180), (1148, 37310), (1274, 33620), (1435, 29848), (1640, 26117), (1681, 25480), (1820, 23534), (1960, 21853), (2009, 21320), (2132, 20090), (2296, 18655), (2548, 16810), (2665, 16072), (2870, 14924), (3185, 13448), (3362, 12740), (3640, 11767), (3731, 11480), (4018, 10660), (4264, 10045), (5096, 8405), (5330, 8036), (5740, 7462), (6370, 6724)]