489343990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{15629}}^1$

素因数の和:15768

約数の個数: 32

約数和(自身を含む): 918293760

約数和(自身を除く): 428949770

約数列:

[1, 2, 5, 10, 31, 62, 101, 155, 202, 310, 505, 1010, 3131, 6262, 15629, 15655, 31258, 31310, 78145, 156290, 484499, 968998, 1578529, 2422495, 3157058, 4844990, 7892645, 15785290, 48934399, 97868798, 244671995, 489343990]

約数ペア:

[(1, 489343990), (2, 244671995), (5, 97868798), (10, 48934399), (31, 15785290), (62, 7892645), (101, 4844990), (155, 3157058), (202, 2422495), (310, 1578529), (505, 968998), (1010, 484499), (3131, 156290), (6262, 78145), (15629, 31310), (15655, 31258)]