8203220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 18095616

約数和(自身を除く): 9892396

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 101, 124, 131, 155, 202, 262, 310, 404, 505, 524, 620, 655, 1010, 1310, 2020, 2620, 3131, 4061, 6262, 8122, 12524, 13231, 15655, 16244, 20305, 26462, 31310, 40610, 52924, 62620, 66155, 81220, 132310, 264620, 410161, 820322, 1640644, 2050805, 4101610, 8203220]

約数ペア:

[(1, 8203220), (2, 4101610), (4, 2050805), (5, 1640644), (10, 820322), (20, 410161), (31, 264620), (62, 132310), (101, 81220), (124, 66155), (131, 62620), (155, 52924), (202, 40610), (262, 31310), (310, 26462), (404, 20305), (505, 16244), (524, 15655), (620, 13231), (655, 12524), (1010, 8122), (1310, 6262), (2020, 4061), (2620, 3131)]