8197720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 19699200

約数和(自身を除く): 11501480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 37, 40, 58, 74, 116, 145, 148, 185, 191, 232, 290, 296, 370, 382, 580, 740, 764, 955, 1073, 1160, 1480, 1528, 1910, 2146, 3820, 4292, 5365, 5539, 7067, 7640, 8584, 10730, 11078, 14134, 21460, 22156, 27695, 28268, 35335, 42920, 44312, 55390, 56536, 70670, 110780, 141340, 204943, 221560, 282680, 409886, 819772, 1024715, 1639544, 2049430, 4098860, 8197720]

約数ペア:

[(1, 8197720), (2, 4098860), (4, 2049430), (5, 1639544), (8, 1024715), (10, 819772), (20, 409886), (29, 282680), (37, 221560), (40, 204943), (58, 141340), (74, 110780), (116, 70670), (145, 56536), (148, 55390), (185, 44312), (191, 42920), (232, 35335), (290, 28268), (296, 27695), (370, 22156), (382, 21460), (580, 14134), (740, 11078), (764, 10730), (955, 8584), (1073, 7640), (1160, 7067), (1480, 5539), (1528, 5365), (1910, 4292), (2146, 3820)]