1640291240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{344599}}^1$

素因数の和:344634

約数の個数: 64

約数和(自身を含む): 4466016000

約数和(自身を除く): 2825724760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4760, 344599, 689198, 1378396, 1722995, 2412193, 2756792, 3445990, 4824386, 5858183, 6891980, 9648772, 11716366, 12060965, 13783960, 19297544, 23432732, 24121930, 29290915, 41007281, 46865464, 48243860, 58581830, 82014562, 96487720, 117163660, 164029124, 205036405, 234327320, 328058248, 410072810, 820145620, 1640291240]

約数ペア:

[(1, 1640291240), (2, 820145620), (4, 410072810), (5, 328058248), (7, 234327320), (8, 205036405), (10, 164029124), (14, 117163660), (17, 96487720), (20, 82014562), (28, 58581830), (34, 48243860), (35, 46865464), (40, 41007281), (56, 29290915), (68, 24121930), (70, 23432732), (85, 19297544), (119, 13783960), (136, 12060965), (140, 11716366), (170, 9648772), (238, 6891980), (280, 5858183), (340, 4824386), (476, 3445990), (595, 2756792), (680, 2412193), (952, 1722995), (1190, 1378396), (2380, 689198), (4760, 344599)]