201215800

素因数分解:

$2^3\times 5^2\times {\mathrm{197}}^1\times {\mathrm{5107}}^1$

素因数の和:5320

約数の個数: 48

約数和(自身を含む): 470293560

約数和(自身を除く): 269077760

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 197, 200, 394, 788, 985, 1576, 1970, 3940, 4925, 5107, 7880, 9850, 10214, 19700, 20428, 25535, 39400, 40856, 51070, 102140, 127675, 204280, 255350, 510700, 1006079, 1021400, 2012158, 4024316, 5030395, 8048632, 10060790, 20121580, 25151975, 40243160, 50303950, 100607900, 201215800]

約数ペア:

[(1, 201215800), (2, 100607900), (4, 50303950), (5, 40243160), (8, 25151975), (10, 20121580), (20, 10060790), (25, 8048632), (40, 5030395), (50, 4024316), (100, 2012158), (197, 1021400), (200, 1006079), (394, 510700), (788, 255350), (985, 204280), (1576, 127675), (1970, 102140), (3940, 51070), (4925, 40856), (5107, 39400), (7880, 25535), (9850, 20428), (10214, 19700)]