20120804080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{47303}}^1$

素因数の和:47738

約数の個数: 80

約数和(自身を含む): 50503642560

約数和(自身を除く): 30382838480

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 409, 520, 818, 1040, 1636, 2045, 3272, 4090, 5317, 6544, 8180, 10634, 16360, 21268, 26585, 32720, 42536, 47303, 53170, 85072, 94606, 106340, 189212, 212680, 236515, 378424, 425360, 473030, 614939, 756848, 946060, 1229878, 1892120, 2459756, 3074695, 3784240, 4919512, 6149390, 9839024, 12298780, 19346927, 24597560, 38693854, 49195120, 77387708, 96734635, 154775416, 193469270, 251510051, 309550832, 386938540, 503020102, 773877080, 1006040204, 1257550255, 1547754160, 2012080408, 2515100510, 4024160816, 5030201020, 10060402040, 20120804080]

約数ペア:

[(1, 20120804080), (2, 10060402040), (4, 5030201020), (5, 4024160816), (8, 2515100510), (10, 2012080408), (13, 1547754160), (16, 1257550255), (20, 1006040204), (26, 773877080), (40, 503020102), (52, 386938540), (65, 309550832), (80, 251510051), (104, 193469270), (130, 154775416), (208, 96734635), (260, 77387708), (409, 49195120), (520, 38693854), (818, 24597560), (1040, 19346927), (1636, 12298780), (2045, 9839024), (3272, 6149390), (4090, 4919512), (5317, 3784240), (6544, 3074695), (8180, 2459756), (10634, 1892120), (16360, 1229878), (21268, 946060), (26585, 756848), (32720, 614939), (42536, 473030), (47303, 425360), (53170, 378424), (85072, 236515), (94606, 212680), (106340, 189212)]