31869880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2647}}^1$

素因数の和:2708

約数の個数: 64

約数和(自身を含む): 83888640

約数和(自身を除く): 52018760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 2647, 3010, 5294, 6020, 10588, 12040, 13235, 18529, 21176, 26470, 37058, 52940, 74116, 92645, 105880, 113821, 148232, 185290, 227642, 370580, 455284, 569105, 741160, 796747, 910568, 1138210, 1593494, 2276420, 3186988, 3983735, 4552840, 6373976, 7967470, 15934940, 31869880]

約数ペア:

[(1, 31869880), (2, 15934940), (4, 7967470), (5, 6373976), (7, 4552840), (8, 3983735), (10, 3186988), (14, 2276420), (20, 1593494), (28, 1138210), (35, 910568), (40, 796747), (43, 741160), (56, 569105), (70, 455284), (86, 370580), (140, 227642), (172, 185290), (215, 148232), (280, 113821), (301, 105880), (344, 92645), (430, 74116), (602, 52940), (860, 37058), (1204, 26470), (1505, 21176), (1720, 18529), (2408, 13235), (2647, 12040), (3010, 10588), (5294, 6020)]