251264020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{811}}^1\times {\mathrm{2213}}^1$

素因数の和:3040

約数の個数: 48

約数和(自身を含む): 604050048

約数和(自身を除く): 352786028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 811, 1622, 2213, 3244, 4055, 4426, 5677, 8110, 8852, 11065, 11354, 15491, 16220, 22130, 22708, 28385, 30982, 44260, 56770, 61964, 77455, 113540, 154910, 309820, 1794743, 3589486, 7178972, 8973715, 12563201, 17947430, 25126402, 35894860, 50252804, 62816005, 125632010, 251264020]

約数ペア:

[(1, 251264020), (2, 125632010), (4, 62816005), (5, 50252804), (7, 35894860), (10, 25126402), (14, 17947430), (20, 12563201), (28, 8973715), (35, 7178972), (70, 3589486), (140, 1794743), (811, 309820), (1622, 154910), (2213, 113540), (3244, 77455), (4055, 61964), (4426, 56770), (5677, 44260), (8110, 30982), (8852, 28385), (11065, 22708), (11354, 22130), (15491, 16220)]