656793920

素因数分解:

$2^6\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19927}}^1$

素因数の和:20047

約数の個数: 56

約数和(自身を含む): 1579254144

約数和(自身を除く): 922460224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 160, 206, 320, 412, 515, 824, 1030, 1648, 2060, 3296, 4120, 6592, 8240, 16480, 19927, 32960, 39854, 79708, 99635, 159416, 199270, 318832, 398540, 637664, 797080, 1275328, 1594160, 2052481, 3188320, 4104962, 6376640, 8209924, 10262405, 16419848, 20524810, 32839696, 41049620, 65679392, 82099240, 131358784, 164198480, 328396960, 656793920]

約数ペア:

[(1, 656793920), (2, 328396960), (4, 164198480), (5, 131358784), (8, 82099240), (10, 65679392), (16, 41049620), (20, 32839696), (32, 20524810), (40, 16419848), (64, 10262405), (80, 8209924), (103, 6376640), (160, 4104962), (206, 3188320), (320, 2052481), (412, 1594160), (515, 1275328), (824, 797080), (1030, 637664), (1648, 398540), (2060, 318832), (3296, 199270), (4120, 159416), (6592, 99635), (8240, 79708), (16480, 39854), (19927, 32960)]