80431520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38669}}^1$

素因数の和:38697

約数の個数: 48

約数和(自身を含む): 204641640

約数和(自身を除く): 124210120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 38669, 77338, 154676, 193345, 309352, 386690, 502697, 618704, 773380, 1005394, 1237408, 1546760, 2010788, 2513485, 3093520, 4021576, 5026970, 6187040, 8043152, 10053940, 16086304, 20107880, 40215760, 80431520]

約数ペア:

[(1, 80431520), (2, 40215760), (4, 20107880), (5, 16086304), (8, 10053940), (10, 8043152), (13, 6187040), (16, 5026970), (20, 4021576), (26, 3093520), (32, 2513485), (40, 2010788), (52, 1546760), (65, 1237408), (80, 1005394), (104, 773380), (130, 618704), (160, 502697), (208, 386690), (260, 309352), (416, 193345), (520, 154676), (1040, 77338), (2080, 38669)]