157280240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3517}}^1$

素因数の和:3586

約数の個数: 80

約数和(自身を含む): 403078368

約数和(自身を除く): 245798128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 2236, 2795, 3440, 3517, 4472, 5590, 7034, 8944, 11180, 14068, 17585, 22360, 28136, 35170, 44720, 45721, 56272, 70340, 91442, 140680, 151231, 182884, 228605, 281360, 302462, 365768, 457210, 604924, 731536, 756155, 914420, 1209848, 1512310, 1828840, 1966003, 2419696, 3024620, 3657680, 3932006, 6049240, 7864012, 9830015, 12098480, 15728024, 19660030, 31456048, 39320060, 78640120, 157280240]

約数ペア:

[(1, 157280240), (2, 78640120), (4, 39320060), (5, 31456048), (8, 19660030), (10, 15728024), (13, 12098480), (16, 9830015), (20, 7864012), (26, 6049240), (40, 3932006), (43, 3657680), (52, 3024620), (65, 2419696), (80, 1966003), (86, 1828840), (104, 1512310), (130, 1209848), (172, 914420), (208, 756155), (215, 731536), (260, 604924), (344, 457210), (430, 365768), (520, 302462), (559, 281360), (688, 228605), (860, 182884), (1040, 151231), (1118, 140680), (1720, 91442), (2236, 70340), (2795, 56272), (3440, 45721), (3517, 44720), (4472, 35170), (5590, 28136), (7034, 22360), (8944, 17585), (11180, 14068)]