6643640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4051}}^1$

素因数の和:4103

約数の個数: 32

約数和(自身を含む): 15316560

約数和(自身を除く): 8672920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 4051, 8102, 16204, 20255, 32408, 40510, 81020, 162040, 166091, 332182, 664364, 830455, 1328728, 1660910, 3321820, 6643640]

約数ペア:

[(1, 6643640), (2, 3321820), (4, 1660910), (5, 1328728), (8, 830455), (10, 664364), (20, 332182), (40, 166091), (41, 162040), (82, 81020), (164, 40510), (205, 32408), (328, 20255), (410, 16204), (820, 8102), (1640, 4051)]