20160855

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{241}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 41451696

約数和(自身を除く): 21290841

約数列:

[1, 3, 5, 9, 11, 13, 15, 33, 39, 45, 55, 65, 99, 117, 143, 165, 169, 195, 241, 429, 495, 507, 585, 715, 723, 845, 1205, 1287, 1521, 1859, 2145, 2169, 2535, 2651, 3133, 3615, 5577, 6435, 7605, 7953, 9295, 9399, 10845, 13255, 15665, 16731, 23859, 27885, 28197, 34463, 39765, 40729, 46995, 83655, 103389, 119295, 122187, 140985, 172315, 203645, 310167, 366561, 448019, 516945, 610935, 1344057, 1550835, 1832805, 2240095, 4032171, 6720285, 20160855]

約数ペア:

[(1, 20160855), (3, 6720285), (5, 4032171), (9, 2240095), (11, 1832805), (13, 1550835), (15, 1344057), (33, 610935), (39, 516945), (45, 448019), (55, 366561), (65, 310167), (99, 203645), (117, 172315), (143, 140985), (165, 122187), (169, 119295), (195, 103389), (241, 83655), (429, 46995), (495, 40729), (507, 39765), (585, 34463), (715, 28197), (723, 27885), (845, 23859), (1205, 16731), (1287, 15665), (1521, 13255), (1859, 10845), (2145, 9399), (2169, 9295), (2535, 7953), (2651, 7605), (3133, 6435), (3615, 5577)]