201813620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{3847}}^1$

素因数の和:3960

約数の個数: 48

約数和(自身を含む): 440888448

約数和(自身を除く): 239074828

約数列:

[1, 2, 4, 5, 10, 20, 43, 61, 86, 122, 172, 215, 244, 305, 430, 610, 860, 1220, 2623, 3847, 5246, 7694, 10492, 13115, 15388, 19235, 26230, 38470, 52460, 76940, 165421, 234667, 330842, 469334, 661684, 827105, 938668, 1173335, 1654210, 2346670, 3308420, 4693340, 10090681, 20181362, 40362724, 50453405, 100906810, 201813620]

約数ペア:

[(1, 201813620), (2, 100906810), (4, 50453405), (5, 40362724), (10, 20181362), (20, 10090681), (43, 4693340), (61, 3308420), (86, 2346670), (122, 1654210), (172, 1173335), (215, 938668), (244, 827105), (305, 661684), (430, 469334), (610, 330842), (860, 234667), (1220, 165421), (2623, 76940), (3847, 52460), (5246, 38470), (7694, 26230), (10492, 19235), (13115, 15388)]