204761800

素因数分解:

$2^3\times 5^2\times {\mathrm{197}}^1\times {\mathrm{5197}}^1$

素因数の和:5410

約数の個数: 48

約数和(自身を含む): 478579860

約数和(自身を除く): 273818060

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 197, 200, 394, 788, 985, 1576, 1970, 3940, 4925, 5197, 7880, 9850, 10394, 19700, 20788, 25985, 39400, 41576, 51970, 103940, 129925, 207880, 259850, 519700, 1023809, 1039400, 2047618, 4095236, 5119045, 8190472, 10238090, 20476180, 25595225, 40952360, 51190450, 102380900, 204761800]

約数ペア:

[(1, 204761800), (2, 102380900), (4, 51190450), (5, 40952360), (8, 25595225), (10, 20476180), (20, 10238090), (25, 8190472), (40, 5119045), (50, 4095236), (100, 2047618), (197, 1039400), (200, 1023809), (394, 519700), (788, 259850), (985, 207880), (1576, 129925), (1970, 103940), (3940, 51970), (4925, 41576), (5197, 39400), (7880, 25985), (9850, 20788), (10394, 19700)]