31541720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{887}}^1$

素因数の和:1032

約数の個数: 64

約数和(自身を含む): 81838080

約数和(自身を除く): 50296360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 280, 508, 635, 887, 889, 1016, 1270, 1774, 1778, 2540, 3548, 3556, 4435, 4445, 5080, 6209, 7096, 7112, 8870, 8890, 12418, 17740, 17780, 24836, 31045, 35480, 35560, 49672, 62090, 112649, 124180, 225298, 248360, 450596, 563245, 788543, 901192, 1126490, 1577086, 2252980, 3154172, 3942715, 4505960, 6308344, 7885430, 15770860, 31541720]

約数ペア:

[(1, 31541720), (2, 15770860), (4, 7885430), (5, 6308344), (7, 4505960), (8, 3942715), (10, 3154172), (14, 2252980), (20, 1577086), (28, 1126490), (35, 901192), (40, 788543), (56, 563245), (70, 450596), (127, 248360), (140, 225298), (254, 124180), (280, 112649), (508, 62090), (635, 49672), (887, 35560), (889, 35480), (1016, 31045), (1270, 24836), (1774, 17780), (1778, 17740), (2540, 12418), (3548, 8890), (3556, 8870), (4435, 7112), (4445, 7096), (5080, 6209)]