31236530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 65415168

約数和(自身を除く): 34178638

約数列:

[1, 2, 5, 10, 13, 23, 26, 31, 46, 62, 65, 115, 130, 155, 230, 299, 310, 337, 403, 598, 674, 713, 806, 1426, 1495, 1685, 2015, 2990, 3370, 3565, 4030, 4381, 7130, 7751, 8762, 9269, 10447, 15502, 18538, 20894, 21905, 38755, 43810, 46345, 52235, 77510, 92690, 100763, 104470, 135811, 201526, 240281, 271622, 480562, 503815, 679055, 1007630, 1201405, 1358110, 2402810, 3123653, 6247306, 15618265, 31236530]

約数ペア:

[(1, 31236530), (2, 15618265), (5, 6247306), (10, 3123653), (13, 2402810), (23, 1358110), (26, 1201405), (31, 1007630), (46, 679055), (62, 503815), (65, 480562), (115, 271622), (130, 240281), (155, 201526), (230, 135811), (299, 104470), (310, 100763), (337, 92690), (403, 77510), (598, 52235), (674, 46345), (713, 43810), (806, 38755), (1426, 21905), (1495, 20894), (1685, 18538), (2015, 15502), (2990, 10447), (3370, 9269), (3565, 8762), (4030, 7751), (4381, 7130)]