20031920

素因数分解:

$2^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1039}}^1$

素因数の和:1293

約数の個数: 40

約数和(自身を含む): 46812480

約数和(自身を除く): 26780560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241, 482, 964, 1039, 1205, 1928, 2078, 2410, 3856, 4156, 4820, 5195, 8312, 9640, 10390, 16624, 19280, 20780, 41560, 83120, 250399, 500798, 1001596, 1251995, 2003192, 2503990, 4006384, 5007980, 10015960, 20031920]

約数ペア:

[(1, 20031920), (2, 10015960), (4, 5007980), (5, 4006384), (8, 2503990), (10, 2003192), (16, 1251995), (20, 1001596), (40, 500798), (80, 250399), (241, 83120), (482, 41560), (964, 20780), (1039, 19280), (1205, 16624), (1928, 10390), (2078, 9640), (2410, 8312), (3856, 5195), (4156, 4820)]