2820520

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{659}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 6415200

約数和(自身を除く): 3594680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 659, 856, 1070, 1318, 2140, 2636, 3295, 4280, 5272, 6590, 13180, 26360, 70513, 141026, 282052, 352565, 564104, 705130, 1410260, 2820520]

約数ペア:

[(1, 2820520), (2, 1410260), (4, 705130), (5, 564104), (8, 352565), (10, 282052), (20, 141026), (40, 70513), (107, 26360), (214, 13180), (428, 6590), (535, 5272), (659, 4280), (856, 3295), (1070, 2636), (1318, 2140)]