8163980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{863}}^1$

素因数の和:926

約数の個数: 48

約数和(自身を含む): 19160064

約数和(自身を除く): 10996084

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 863, 946, 1726, 1892, 2365, 3452, 4315, 4730, 8630, 9460, 9493, 17260, 18986, 37109, 37972, 47465, 74218, 94930, 148436, 185545, 189860, 371090, 408199, 742180, 816398, 1632796, 2040995, 4081990, 8163980]

約数ペア:

[(1, 8163980), (2, 4081990), (4, 2040995), (5, 1632796), (10, 816398), (11, 742180), (20, 408199), (22, 371090), (43, 189860), (44, 185545), (55, 148436), (86, 94930), (110, 74218), (172, 47465), (215, 37972), (220, 37109), (430, 18986), (473, 17260), (860, 9493), (863, 9460), (946, 8630), (1726, 4730), (1892, 4315), (2365, 3452)]