80500220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{773}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 174763008

約数和(自身を除く): 94262788

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 127, 164, 205, 254, 410, 508, 635, 773, 820, 1270, 1546, 2540, 3092, 3865, 5207, 7730, 10414, 15460, 20828, 26035, 31693, 52070, 63386, 98171, 104140, 126772, 158465, 196342, 316930, 392684, 490855, 633860, 981710, 1963420, 4025011, 8050022, 16100044, 20125055, 40250110, 80500220]

約数ペア:

[(1, 80500220), (2, 40250110), (4, 20125055), (5, 16100044), (10, 8050022), (20, 4025011), (41, 1963420), (82, 981710), (127, 633860), (164, 490855), (205, 392684), (254, 316930), (410, 196342), (508, 158465), (635, 126772), (773, 104140), (820, 98171), (1270, 63386), (1546, 52070), (2540, 31693), (3092, 26035), (3865, 20828), (5207, 15460), (7730, 10414)]