31157685

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 62177544

約数和(自身を除く): 31019859

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 169, 195, 221, 241, 255, 507, 585, 663, 723, 765, 845, 1105, 1205, 1521, 1989, 2169, 2535, 2873, 3133, 3315, 3615, 4097, 7605, 8619, 9399, 9945, 10845, 12291, 14365, 15665, 20485, 25857, 28197, 36873, 40729, 43095, 46995, 53261, 61455, 122187, 129285, 140985, 159783, 184365, 203645, 266305, 366561, 479349, 610935, 692393, 798915, 1832805, 2077179, 2396745, 3461965, 6231537, 10385895, 31157685]

約数ペア:

[(1, 31157685), (3, 10385895), (5, 6231537), (9, 3461965), (13, 2396745), (15, 2077179), (17, 1832805), (39, 798915), (45, 692393), (51, 610935), (65, 479349), (85, 366561), (117, 266305), (153, 203645), (169, 184365), (195, 159783), (221, 140985), (241, 129285), (255, 122187), (507, 61455), (585, 53261), (663, 46995), (723, 43095), (765, 40729), (845, 36873), (1105, 28197), (1205, 25857), (1521, 20485), (1989, 15665), (2169, 14365), (2535, 12291), (2873, 10845), (3133, 9945), (3315, 9399), (3615, 8619), (4097, 7605)]