71549420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{307}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 154818048

約数和(自身を除く): 83268628

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 271, 307, 430, 542, 614, 860, 1084, 1228, 1355, 1535, 2710, 3070, 5420, 6140, 11653, 13201, 23306, 26402, 46612, 52804, 58265, 66005, 83197, 116530, 132010, 166394, 233060, 264020, 332788, 415985, 831970, 1663940, 3577471, 7154942, 14309884, 17887355, 35774710, 71549420]

約数ペア:

[(1, 71549420), (2, 35774710), (4, 17887355), (5, 14309884), (10, 7154942), (20, 3577471), (43, 1663940), (86, 831970), (172, 415985), (215, 332788), (271, 264020), (307, 233060), (430, 166394), (542, 132010), (614, 116530), (860, 83197), (1084, 66005), (1228, 58265), (1355, 52804), (1535, 46612), (2710, 26402), (3070, 23306), (5420, 13201), (6140, 11653)]