31491330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80747}}^1$

素因数の和:80770

約数の個数: 32

約数和(自身を含む): 81393984

約数和(自身を除く): 49902654

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 80747, 161494, 242241, 403735, 484482, 807470, 1049711, 1211205, 2099422, 2422410, 3149133, 5248555, 6298266, 10497110, 15745665, 31491330]

約数ペア:

[(1, 31491330), (2, 15745665), (3, 10497110), (5, 6298266), (6, 5248555), (10, 3149133), (13, 2422410), (15, 2099422), (26, 1211205), (30, 1049711), (39, 807470), (65, 484482), (78, 403735), (130, 242241), (195, 161494), (390, 80747)]