201565940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{811}}^1$

素因数の和:897

約数の個数: 72

約数和(自身を含む): 460676832

約数和(自身を除く): 259110892

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 289, 340, 430, 578, 731, 811, 860, 1156, 1445, 1462, 1622, 2890, 2924, 3244, 3655, 4055, 5780, 7310, 8110, 12427, 13787, 14620, 16220, 24854, 27574, 34873, 49708, 55148, 62135, 68935, 69746, 124270, 137870, 139492, 174365, 234379, 248540, 275740, 348730, 468758, 592841, 697460, 937516, 1171895, 1185682, 2343790, 2371364, 2964205, 4687580, 5928410, 10078297, 11856820, 20156594, 40313188, 50391485, 100782970, 201565940]

約数ペア:

[(1, 201565940), (2, 100782970), (4, 50391485), (5, 40313188), (10, 20156594), (17, 11856820), (20, 10078297), (34, 5928410), (43, 4687580), (68, 2964205), (85, 2371364), (86, 2343790), (170, 1185682), (172, 1171895), (215, 937516), (289, 697460), (340, 592841), (430, 468758), (578, 348730), (731, 275740), (811, 248540), (860, 234379), (1156, 174365), (1445, 139492), (1462, 137870), (1622, 124270), (2890, 69746), (2924, 68935), (3244, 62135), (3655, 55148), (4055, 49708), (5780, 34873), (7310, 27574), (8110, 24854), (12427, 16220), (13787, 14620)]