80346440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1489}}^1$

素因数の和:1590

約数の個数: 64

約数和(自身を含む): 193104000

約数和(自身を除く): 112757560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 71, 76, 95, 142, 152, 190, 284, 355, 380, 568, 710, 760, 1349, 1420, 1489, 2698, 2840, 2978, 5396, 5956, 6745, 7445, 10792, 11912, 13490, 14890, 26980, 28291, 29780, 53960, 56582, 59560, 105719, 113164, 141455, 211438, 226328, 282910, 422876, 528595, 565820, 845752, 1057190, 1131640, 2008661, 2114380, 4017322, 4228760, 8034644, 10043305, 16069288, 20086610, 40173220, 80346440]

約数ペア:

[(1, 80346440), (2, 40173220), (4, 20086610), (5, 16069288), (8, 10043305), (10, 8034644), (19, 4228760), (20, 4017322), (38, 2114380), (40, 2008661), (71, 1131640), (76, 1057190), (95, 845752), (142, 565820), (152, 528595), (190, 422876), (284, 282910), (355, 226328), (380, 211438), (568, 141455), (710, 113164), (760, 105719), (1349, 59560), (1420, 56582), (1489, 53960), (2698, 29780), (2840, 28291), (2978, 26980), (5396, 14890), (5956, 13490), (6745, 11912), (7445, 10792)]