308145680

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{54251}}^1$

素因数の和:54335

約数の個数: 40

約数和(自身を含む): 726542784

約数和(自身を除く): 418397104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 54251, 108502, 217004, 271255, 434008, 542510, 868016, 1085020, 2170040, 3851821, 4340080, 7703642, 15407284, 19259105, 30814568, 38518210, 61629136, 77036420, 154072840, 308145680]

約数ペア:

[(1, 308145680), (2, 154072840), (4, 77036420), (5, 61629136), (8, 38518210), (10, 30814568), (16, 19259105), (20, 15407284), (40, 7703642), (71, 4340080), (80, 3851821), (142, 2170040), (284, 1085020), (355, 868016), (568, 542510), (710, 434008), (1136, 271255), (1420, 217004), (2840, 108502), (5680, 54251)]