31127740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1381}}^1$

素因数の和:1427

約数の個数: 72

約数和(自身を含む): 79404192

約数和(自身を除く): 48276452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1381, 1610, 2254, 2762, 3220, 4508, 5524, 5635, 6905, 9667, 11270, 13810, 19334, 22540, 27620, 31763, 38668, 48335, 63526, 67669, 96670, 127052, 135338, 158815, 193340, 222341, 270676, 317630, 338345, 444682, 635260, 676690, 889364, 1111705, 1353380, 1556387, 2223410, 3112774, 4446820, 6225548, 7781935, 15563870, 31127740]

約数ペア:

[(1, 31127740), (2, 15563870), (4, 7781935), (5, 6225548), (7, 4446820), (10, 3112774), (14, 2223410), (20, 1556387), (23, 1353380), (28, 1111705), (35, 889364), (46, 676690), (49, 635260), (70, 444682), (92, 338345), (98, 317630), (115, 270676), (140, 222341), (161, 193340), (196, 158815), (230, 135338), (245, 127052), (322, 96670), (460, 67669), (490, 63526), (644, 48335), (805, 38668), (980, 31763), (1127, 27620), (1381, 22540), (1610, 19334), (2254, 13810), (2762, 11270), (3220, 9667), (4508, 6905), (5524, 5635)]