646364140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{18457}}^1$

素因数の和:18586

約数の個数: 48

約数和(自身を含む): 1451241792

約数和(自身を除く): 804877652

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 103, 170, 206, 340, 412, 515, 1030, 1751, 2060, 3502, 7004, 8755, 17510, 18457, 35020, 36914, 73828, 92285, 184570, 313769, 369140, 627538, 1255076, 1568845, 1901071, 3137690, 3802142, 6275380, 7604284, 9505355, 19010710, 32318207, 38021420, 64636414, 129272828, 161591035, 323182070, 646364140]

約数ペア:

[(1, 646364140), (2, 323182070), (4, 161591035), (5, 129272828), (10, 64636414), (17, 38021420), (20, 32318207), (34, 19010710), (68, 9505355), (85, 7604284), (103, 6275380), (170, 3802142), (206, 3137690), (340, 1901071), (412, 1568845), (515, 1255076), (1030, 627538), (1751, 369140), (2060, 313769), (3502, 184570), (7004, 92285), (8755, 73828), (17510, 36914), (18457, 35020)]