82458520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{251}}^1$

素因数の和:496

約数の個数: 64

約数和(自身を含む): 191600640

約数和(自身を除く): 109142120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 191, 215, 251, 344, 382, 430, 502, 764, 860, 955, 1004, 1255, 1528, 1720, 1910, 2008, 2510, 3820, 5020, 7640, 8213, 10040, 10793, 16426, 21586, 32852, 41065, 43172, 47941, 53965, 65704, 82130, 86344, 95882, 107930, 164260, 191764, 215860, 239705, 328520, 383528, 431720, 479410, 958820, 1917640, 2061463, 4122926, 8245852, 10307315, 16491704, 20614630, 41229260, 82458520]

約数ペア:

[(1, 82458520), (2, 41229260), (4, 20614630), (5, 16491704), (8, 10307315), (10, 8245852), (20, 4122926), (40, 2061463), (43, 1917640), (86, 958820), (172, 479410), (191, 431720), (215, 383528), (251, 328520), (344, 239705), (382, 215860), (430, 191764), (502, 164260), (764, 107930), (860, 95882), (955, 86344), (1004, 82130), (1255, 65704), (1528, 53965), (1720, 47941), (1910, 43172), (2008, 41065), (2510, 32852), (3820, 21586), (5020, 16426), (7640, 10793), (8213, 10040)]