251011340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{6637}}^1$

素因数の和:6738

約数の個数: 48

約数和(自身を含む): 553131264

約数和(自身を除く): 302119924

約数列:

[1, 2, 4, 5, 10, 20, 31, 61, 62, 122, 124, 155, 244, 305, 310, 610, 620, 1220, 1891, 3782, 6637, 7564, 9455, 13274, 18910, 26548, 33185, 37820, 66370, 132740, 205747, 404857, 411494, 809714, 822988, 1028735, 1619428, 2024285, 2057470, 4048570, 4114940, 8097140, 12550567, 25101134, 50202268, 62752835, 125505670, 251011340]

約数ペア:

[(1, 251011340), (2, 125505670), (4, 62752835), (5, 50202268), (10, 25101134), (20, 12550567), (31, 8097140), (61, 4114940), (62, 4048570), (122, 2057470), (124, 2024285), (155, 1619428), (244, 1028735), (305, 822988), (310, 809714), (610, 411494), (620, 404857), (1220, 205747), (1891, 132740), (3782, 66370), (6637, 37820), (7564, 33185), (9455, 26548), (13274, 18910)]