320415680

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77023}}^1$

素因数の和:77053

約数の個数: 56

約数和(自身を含む): 821692032

約数和(自身を除く): 501276352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 77023, 154046, 308092, 385115, 616184, 770230, 1001299, 1232368, 1540460, 2002598, 2464736, 3080920, 4005196, 4929472, 5006495, 6161840, 8010392, 10012990, 12323680, 16020784, 20025980, 24647360, 32041568, 40051960, 64083136, 80103920, 160207840, 320415680]

約数ペア:

[(1, 320415680), (2, 160207840), (4, 80103920), (5, 64083136), (8, 40051960), (10, 32041568), (13, 24647360), (16, 20025980), (20, 16020784), (26, 12323680), (32, 10012990), (40, 8010392), (52, 6161840), (64, 5006495), (65, 4929472), (80, 4005196), (104, 3080920), (130, 2464736), (160, 2002598), (208, 1540460), (260, 1232368), (320, 1001299), (416, 770230), (520, 616184), (832, 385115), (1040, 308092), (2080, 154046), (4160, 77023)]