855140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1$

素因数の和:69

約数の個数: 72

約数和(自身を含む): 2213568

約数和(自身を除く): 1358428

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 23, 26, 44, 46, 52, 55, 65, 92, 110, 115, 130, 143, 169, 220, 230, 253, 260, 286, 299, 338, 460, 506, 572, 598, 676, 715, 845, 1012, 1196, 1265, 1430, 1495, 1690, 1859, 2530, 2860, 2990, 3289, 3380, 3718, 3887, 5060, 5980, 6578, 7436, 7774, 9295, 13156, 15548, 16445, 18590, 19435, 32890, 37180, 38870, 42757, 65780, 77740, 85514, 171028, 213785, 427570, 855140]

約数ペア:

[(1, 855140), (2, 427570), (4, 213785), (5, 171028), (10, 85514), (11, 77740), (13, 65780), (20, 42757), (22, 38870), (23, 37180), (26, 32890), (44, 19435), (46, 18590), (52, 16445), (55, 15548), (65, 13156), (92, 9295), (110, 7774), (115, 7436), (130, 6578), (143, 5980), (169, 5060), (220, 3887), (230, 3718), (253, 3380), (260, 3289), (286, 2990), (299, 2860), (338, 2530), (460, 1859), (506, 1690), (572, 1495), (598, 1430), (676, 1265), (715, 1196), (845, 1012)]