4946980

素因数分解:

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

素因数の和:220

約数の個数: 48

約数和(自身を含む): 10967040

約数和(自身を除く): 6020060

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 101, 124, 155, 158, 202, 310, 316, 395, 404, 505, 620, 790, 1010, 1580, 2020, 2449, 3131, 4898, 6262, 7979, 9796, 12245, 12524, 15655, 15958, 24490, 31310, 31916, 39895, 48980, 62620, 79790, 159580, 247349, 494698, 989396, 1236745, 2473490, 4946980]

約数ペア:

[(1, 4946980), (2, 2473490), (4, 1236745), (5, 989396), (10, 494698), (20, 247349), (31, 159580), (62, 79790), (79, 62620), (101, 48980), (124, 39895), (155, 31916), (158, 31310), (202, 24490), (310, 15958), (316, 15655), (395, 12524), (404, 12245), (505, 9796), (620, 7979), (790, 6262), (1010, 4898), (1580, 3131), (2020, 2449)]