256432920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20747}}^1$

素因数の和:20864

約数の個数: 64

約数和(自身を含む): 776805120

約数和(自身を除く): 520372200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 103, 120, 206, 309, 412, 515, 618, 824, 1030, 1236, 1545, 2060, 2472, 3090, 4120, 6180, 12360, 20747, 41494, 62241, 82988, 103735, 124482, 165976, 207470, 248964, 311205, 414940, 497928, 622410, 829880, 1244820, 2136941, 2489640, 4273882, 6410823, 8547764, 10684705, 12821646, 17095528, 21369410, 25643292, 32054115, 42738820, 51286584, 64108230, 85477640, 128216460, 256432920]

約数ペア:

[(1, 256432920), (2, 128216460), (3, 85477640), (4, 64108230), (5, 51286584), (6, 42738820), (8, 32054115), (10, 25643292), (12, 21369410), (15, 17095528), (20, 12821646), (24, 10684705), (30, 8547764), (40, 6410823), (60, 4273882), (103, 2489640), (120, 2136941), (206, 1244820), (309, 829880), (412, 622410), (515, 497928), (618, 414940), (824, 311205), (1030, 248964), (1236, 207470), (1545, 165976), (2060, 124482), (2472, 103735), (3090, 82988), (4120, 62241), (6180, 41494), (12360, 20747)]