204419920

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{54367}}^1$

素因数の和:54427

約数の個数: 40

約数和(自身を含む): 485397504

約数和(自身を除く): 280977584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 54367, 108734, 217468, 271835, 434936, 543670, 869872, 1087340, 2174680, 2555249, 4349360, 5110498, 10220996, 12776245, 20441992, 25552490, 40883984, 51104980, 102209960, 204419920]

約数ペア:

[(1, 204419920), (2, 102209960), (4, 51104980), (5, 40883984), (8, 25552490), (10, 20441992), (16, 12776245), (20, 10220996), (40, 5110498), (47, 4349360), (80, 2555249), (94, 2174680), (188, 1087340), (235, 869872), (376, 543670), (470, 434936), (752, 271835), (940, 217468), (1880, 108734), (3760, 54367)]