81489884

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{100357}}^1$

素因数の和:100397

約数の個数: 24

約数和(自身を含む): 168601440

約数和(自身を除く): 87111556

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 100357, 200714, 401428, 702499, 1404998, 2809996, 2910353, 5820706, 11641412, 20372471, 40744942, 81489884]

約数ペア:

[(1, 81489884), (2, 40744942), (4, 20372471), (7, 11641412), (14, 5820706), (28, 2910353), (29, 2809996), (58, 1404998), (116, 702499), (203, 401428), (406, 200714), (812, 100357)]