291220540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1607}}^1$

素因数の和:1687

約数の個数: 96

約数和(自身を含む): 714801024

約数和(自身を除く): 423580484

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 41, 52, 65, 68, 82, 85, 130, 164, 170, 205, 221, 260, 340, 410, 442, 533, 697, 820, 884, 1066, 1105, 1394, 1607, 2132, 2210, 2665, 2788, 3214, 3485, 4420, 5330, 6428, 6970, 8035, 9061, 10660, 13940, 16070, 18122, 20891, 27319, 32140, 36244, 41782, 45305, 54638, 65887, 83564, 90610, 104455, 109276, 131774, 136595, 181220, 208910, 263548, 273190, 329435, 355147, 417820, 546380, 658870, 710294, 856531, 1120079, 1317740, 1420588, 1713062, 1775735, 2240158, 3426124, 3551470, 4282655, 4480316, 5600395, 7102940, 8565310, 11200790, 14561027, 17130620, 22401580, 29122054, 58244108, 72805135, 145610270, 291220540]

約数ペア:

[(1, 291220540), (2, 145610270), (4, 72805135), (5, 58244108), (10, 29122054), (13, 22401580), (17, 17130620), (20, 14561027), (26, 11200790), (34, 8565310), (41, 7102940), (52, 5600395), (65, 4480316), (68, 4282655), (82, 3551470), (85, 3426124), (130, 2240158), (164, 1775735), (170, 1713062), (205, 1420588), (221, 1317740), (260, 1120079), (340, 856531), (410, 710294), (442, 658870), (533, 546380), (697, 417820), (820, 355147), (884, 329435), (1066, 273190), (1105, 263548), (1394, 208910), (1607, 181220), (2132, 136595), (2210, 131774), (2665, 109276), (2788, 104455), (3214, 90610), (3485, 83564), (4420, 65887), (5330, 54638), (6428, 45305), (6970, 41782), (8035, 36244), (9061, 32140), (10660, 27319), (13940, 20891), (16070, 18122)]