2021119960

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{421}}^1\times {\mathrm{467}}^1$

素因数の和:1156

約数の個数: 64

約数和(自身を含む): 4585857120

約数和(自身を除く): 2564737160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 421, 467, 514, 842, 934, 1028, 1285, 1684, 1868, 2056, 2105, 2335, 2570, 3368, 3736, 4210, 4670, 5140, 8420, 9340, 10280, 16840, 18680, 108197, 120019, 196607, 216394, 240038, 393214, 432788, 480076, 540985, 600095, 786428, 865576, 960152, 983035, 1081970, 1200190, 1572856, 1966070, 2163940, 2400380, 3932140, 4327880, 4800760, 7864280, 50527999, 101055998, 202111996, 252639995, 404223992, 505279990, 1010559980, 2021119960]

約数ペア:

[(1, 2021119960), (2, 1010559980), (4, 505279990), (5, 404223992), (8, 252639995), (10, 202111996), (20, 101055998), (40, 50527999), (257, 7864280), (421, 4800760), (467, 4327880), (514, 3932140), (842, 2400380), (934, 2163940), (1028, 1966070), (1285, 1572856), (1684, 1200190), (1868, 1081970), (2056, 983035), (2105, 960152), (2335, 865576), (2570, 786428), (3368, 600095), (3736, 540985), (4210, 480076), (4670, 432788), (5140, 393214), (8420, 240038), (9340, 216394), (10280, 196607), (16840, 120019), (18680, 108197)]