87617740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{32939}}^1$

素因数の和:32974

約数の個数: 48

約数和(自身を含む): 221356800

約数和(自身を除く): 133739060

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 32939, 65878, 131756, 164695, 230573, 329390, 461146, 625841, 658780, 922292, 1152865, 1251682, 2305730, 2503364, 3129205, 4380887, 4611460, 6258410, 8761774, 12516820, 17523548, 21904435, 43808870, 87617740]

約数ペア:

[(1, 87617740), (2, 43808870), (4, 21904435), (5, 17523548), (7, 12516820), (10, 8761774), (14, 6258410), (19, 4611460), (20, 4380887), (28, 3129205), (35, 2503364), (38, 2305730), (70, 1251682), (76, 1152865), (95, 922292), (133, 658780), (140, 625841), (190, 461146), (266, 329390), (380, 230573), (532, 164695), (665, 131756), (1330, 65878), (2660, 32939)]