13287280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4051}}^1$

素因数の和:4105

約数の個数: 40

約数和(自身を含む): 31654224

約数和(自身を除く): 18366944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 4051, 8102, 16204, 20255, 32408, 40510, 64816, 81020, 162040, 166091, 324080, 332182, 664364, 830455, 1328728, 1660910, 2657456, 3321820, 6643640, 13287280]

約数ペア:

[(1, 13287280), (2, 6643640), (4, 3321820), (5, 2657456), (8, 1660910), (10, 1328728), (16, 830455), (20, 664364), (40, 332182), (41, 324080), (80, 166091), (82, 162040), (164, 81020), (205, 64816), (328, 40510), (410, 32408), (656, 20255), (820, 16204), (1640, 8102), (3280, 4051)]