7452980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 16405200

約数和(自身を除く): 8952220

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 149, 164, 205, 244, 298, 305, 410, 596, 610, 745, 820, 1220, 1490, 2501, 2980, 5002, 6109, 9089, 10004, 12218, 12505, 18178, 24436, 25010, 30545, 36356, 45445, 50020, 61090, 90890, 122180, 181780, 372649, 745298, 1490596, 1863245, 3726490, 7452980]

約数ペア:

[(1, 7452980), (2, 3726490), (4, 1863245), (5, 1490596), (10, 745298), (20, 372649), (41, 181780), (61, 122180), (82, 90890), (122, 61090), (149, 50020), (164, 45445), (205, 36356), (244, 30545), (298, 25010), (305, 24436), (410, 18178), (596, 12505), (610, 12218), (745, 10004), (820, 9089), (1220, 6109), (1490, 5002), (2501, 2980)]