86704820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 187055568

約数和(自身を除く): 100350748

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 157, 212, 265, 314, 521, 530, 628, 785, 1042, 1060, 1570, 2084, 2605, 3140, 5210, 8321, 10420, 16642, 27613, 33284, 41605, 55226, 81797, 83210, 110452, 138065, 163594, 166420, 276130, 327188, 408985, 552260, 817970, 1635940, 4335241, 8670482, 17340964, 21676205, 43352410, 86704820]

約数ペア:

[(1, 86704820), (2, 43352410), (4, 21676205), (5, 17340964), (10, 8670482), (20, 4335241), (53, 1635940), (106, 817970), (157, 552260), (212, 408985), (265, 327188), (314, 276130), (521, 166420), (530, 163594), (628, 138065), (785, 110452), (1042, 83210), (1060, 81797), (1570, 55226), (2084, 41605), (2605, 33284), (3140, 27613), (5210, 16642), (8321, 10420)]