280015250

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{36131}}^1$

素因数の和:36179

約数の個数: 32

約数和(自身を含む): 541112832

約数和(自身を除く): 261097582

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 125, 155, 250, 310, 775, 1550, 3875, 7750, 36131, 72262, 180655, 361310, 903275, 1120061, 1806550, 2240122, 4516375, 5600305, 9032750, 11200610, 28001525, 56003050, 140007625, 280015250]

約数ペア:

[(1, 280015250), (2, 140007625), (5, 56003050), (10, 28001525), (25, 11200610), (31, 9032750), (50, 5600305), (62, 4516375), (125, 2240122), (155, 1806550), (250, 1120061), (310, 903275), (775, 361310), (1550, 180655), (3875, 72262), (7750, 36131)]