172980340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{12553}}^1$

素因数の和:12628

約数の個数: 48

約数和(自身を含む): 398614608

約数和(自身を除く): 225634268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 6890, 12553, 13780, 25106, 50212, 62765, 125530, 163189, 251060, 326378, 652756, 665309, 815945, 1330618, 1631890, 2661236, 3263780, 3326545, 6653090, 8649017, 13306180, 17298034, 34596068, 43245085, 86490170, 172980340]

約数ペア:

[(1, 172980340), (2, 86490170), (4, 43245085), (5, 34596068), (10, 17298034), (13, 13306180), (20, 8649017), (26, 6653090), (52, 3326545), (53, 3263780), (65, 2661236), (106, 1631890), (130, 1330618), (212, 815945), (260, 665309), (265, 652756), (530, 326378), (689, 251060), (1060, 163189), (1378, 125530), (2756, 62765), (3445, 50212), (6890, 25106), (12553, 13780)]