40981330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1319}}^1$

素因数の和:1578

約数の個数: 32

約数和(自身を含む): 79833600

約数和(自身を除く): 38852270

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 239, 478, 1195, 1319, 2390, 2638, 3107, 6214, 6595, 13190, 15535, 17147, 31070, 34294, 85735, 171470, 315241, 630482, 1576205, 3152410, 4098133, 8196266, 20490665, 40981330]

約数ペア:

[(1, 40981330), (2, 20490665), (5, 8196266), (10, 4098133), (13, 3152410), (26, 1576205), (65, 630482), (130, 315241), (239, 171470), (478, 85735), (1195, 34294), (1319, 31070), (2390, 17147), (2638, 15535), (3107, 13190), (6214, 6595)]