28739120

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2411}}^1$

素因数の和:2573

約数の個数: 40

約数和(自身を含む): 67294800

約数和(自身を除く): 38555680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2411, 2980, 4822, 5960, 9644, 11920, 12055, 19288, 24110, 38576, 48220, 96440, 192880, 359239, 718478, 1436956, 1796195, 2873912, 3592390, 5747824, 7184780, 14369560, 28739120]

約数ペア:

[(1, 28739120), (2, 14369560), (4, 7184780), (5, 5747824), (8, 3592390), (10, 2873912), (16, 1796195), (20, 1436956), (40, 718478), (80, 359239), (149, 192880), (298, 96440), (596, 48220), (745, 38576), (1192, 24110), (1490, 19288), (2384, 12055), (2411, 11920), (2980, 9644), (4822, 5960)]