64357240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:173

約数の個数: 128

約数和(自身を含む): 164229120

約数和(自身を除く): 99871880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 43, 62, 68, 71, 85, 86, 124, 136, 142, 155, 170, 172, 215, 248, 284, 310, 340, 344, 355, 430, 527, 568, 620, 680, 710, 731, 860, 1054, 1207, 1240, 1333, 1420, 1462, 1720, 2108, 2201, 2414, 2635, 2666, 2840, 2924, 3053, 3655, 4216, 4402, 4828, 5270, 5332, 5848, 6035, 6106, 6665, 7310, 8804, 9656, 10540, 10664, 11005, 12070, 12212, 13330, 14620, 15265, 17608, 21080, 22010, 22661, 24140, 24424, 26660, 29240, 30530, 37417, 44020, 45322, 48280, 51901, 53320, 61060, 74834, 88040, 90644, 94643, 103802, 113305, 122120, 149668, 181288, 187085, 189286, 207604, 226610, 259505, 299336, 374170, 378572, 415208, 453220, 473215, 519010, 748340, 757144, 906440, 946430, 1038020, 1496680, 1608931, 1892860, 2076040, 3217862, 3785720, 6435724, 8044655, 12871448, 16089310, 32178620, 64357240]

約数ペア:

[(1, 64357240), (2, 32178620), (4, 16089310), (5, 12871448), (8, 8044655), (10, 6435724), (17, 3785720), (20, 3217862), (31, 2076040), (34, 1892860), (40, 1608931), (43, 1496680), (62, 1038020), (68, 946430), (71, 906440), (85, 757144), (86, 748340), (124, 519010), (136, 473215), (142, 453220), (155, 415208), (170, 378572), (172, 374170), (215, 299336), (248, 259505), (284, 226610), (310, 207604), (340, 189286), (344, 187085), (355, 181288), (430, 149668), (527, 122120), (568, 113305), (620, 103802), (680, 94643), (710, 90644), (731, 88040), (860, 74834), (1054, 61060), (1207, 53320), (1240, 51901), (1333, 48280), (1420, 45322), (1462, 44020), (1720, 37417), (2108, 30530), (2201, 29240), (2414, 26660), (2635, 24424), (2666, 24140), (2840, 22661), (2924, 22010), (3053, 21080), (3655, 17608), (4216, 15265), (4402, 14620), (4828, 13330), (5270, 12212), (5332, 12070), (5848, 11005), (6035, 10664), (6106, 10540), (6665, 9656), (7310, 8804)]