20684480

素因数分解:

$2^6\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1747}}^1$

素因数の和:1801

約数の個数: 56

約数和(自身を含む): 50615088

約数和(自身を除く): 29930608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 148, 160, 185, 296, 320, 370, 592, 740, 1184, 1480, 1747, 2368, 2960, 3494, 5920, 6988, 8735, 11840, 13976, 17470, 27952, 34940, 55904, 64639, 69880, 111808, 129278, 139760, 258556, 279520, 323195, 517112, 559040, 646390, 1034224, 1292780, 2068448, 2585560, 4136896, 5171120, 10342240, 20684480]

約数ペア:

[(1, 20684480), (2, 10342240), (4, 5171120), (5, 4136896), (8, 2585560), (10, 2068448), (16, 1292780), (20, 1034224), (32, 646390), (37, 559040), (40, 517112), (64, 323195), (74, 279520), (80, 258556), (148, 139760), (160, 129278), (185, 111808), (296, 69880), (320, 64639), (370, 55904), (592, 34940), (740, 27952), (1184, 17470), (1480, 13976), (1747, 11840), (2368, 8735), (2960, 6988), (3494, 5920)]