156966820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 334990656

約数和(自身を除く): 178023836

約数列:

[1, 2, 4, 5, 10, 20, 131, 181, 262, 331, 362, 524, 655, 662, 724, 905, 1310, 1324, 1655, 1810, 2620, 3310, 3620, 6620, 23711, 43361, 47422, 59911, 86722, 94844, 118555, 119822, 173444, 216805, 237110, 239644, 299555, 433610, 474220, 599110, 867220, 1198220, 7848341, 15696682, 31393364, 39241705, 78483410, 156966820]

約数ペア:

[(1, 156966820), (2, 78483410), (4, 39241705), (5, 31393364), (10, 15696682), (20, 7848341), (131, 1198220), (181, 867220), (262, 599110), (331, 474220), (362, 433610), (524, 299555), (655, 239644), (662, 237110), (724, 216805), (905, 173444), (1310, 119822), (1324, 118555), (1655, 94844), (1810, 86722), (2620, 59911), (3310, 47422), (3620, 43361), (6620, 23711)]