15665780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 35879760

約数和(自身を除く): 20213980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 677, 890, 1157, 1354, 1780, 2314, 2708, 3385, 4628, 5785, 6770, 8801, 11570, 13540, 17602, 23140, 35204, 44005, 60253, 88010, 120506, 176020, 241012, 301265, 602530, 783289, 1205060, 1566578, 3133156, 3916445, 7832890, 15665780]

約数ペア:

[(1, 15665780), (2, 7832890), (4, 3916445), (5, 3133156), (10, 1566578), (13, 1205060), (20, 783289), (26, 602530), (52, 301265), (65, 241012), (89, 176020), (130, 120506), (178, 88010), (260, 60253), (356, 44005), (445, 35204), (677, 23140), (890, 17602), (1157, 13540), (1354, 11570), (1780, 8801), (2314, 6770), (2708, 5785), (3385, 4628)]