9893960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 23500800

約数和(自身を除く): 13606840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 101, 124, 155, 158, 202, 248, 310, 316, 395, 404, 505, 620, 632, 790, 808, 1010, 1240, 1580, 2020, 2449, 3131, 3160, 4040, 4898, 6262, 7979, 9796, 12245, 12524, 15655, 15958, 19592, 24490, 25048, 31310, 31916, 39895, 48980, 62620, 63832, 79790, 97960, 125240, 159580, 247349, 319160, 494698, 989396, 1236745, 1978792, 2473490, 4946980, 9893960]

約数ペア:

[(1, 9893960), (2, 4946980), (4, 2473490), (5, 1978792), (8, 1236745), (10, 989396), (20, 494698), (31, 319160), (40, 247349), (62, 159580), (79, 125240), (101, 97960), (124, 79790), (155, 63832), (158, 62620), (202, 48980), (248, 39895), (310, 31916), (316, 31310), (395, 25048), (404, 24490), (505, 19592), (620, 15958), (632, 15655), (790, 12524), (808, 12245), (1010, 9796), (1240, 7979), (1580, 6262), (2020, 4898), (2449, 4040), (3131, 3160)]