20433800

素因数分解:

$2^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1439}}^1$

素因数の和:1526

約数の個数: 48

約数和(自身を含む): 48211200

約数和(自身を除く): 27777400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 142, 200, 284, 355, 568, 710, 1420, 1439, 1775, 2840, 2878, 3550, 5756, 7100, 7195, 11512, 14200, 14390, 28780, 35975, 57560, 71950, 102169, 143900, 204338, 287800, 408676, 510845, 817352, 1021690, 2043380, 2554225, 4086760, 5108450, 10216900, 20433800]

約数ペア:

[(1, 20433800), (2, 10216900), (4, 5108450), (5, 4086760), (8, 2554225), (10, 2043380), (20, 1021690), (25, 817352), (40, 510845), (50, 408676), (71, 287800), (100, 204338), (142, 143900), (200, 102169), (284, 71950), (355, 57560), (568, 35975), (710, 28780), (1420, 14390), (1439, 14200), (1775, 11512), (2840, 7195), (2878, 7100), (3550, 5756)]