79971920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{887}}^1$

素因数の和:937

約数の個数: 120

約数和(自身を含む): 225949824

約数和(自身を除く): 145977904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 322, 368, 392, 460, 490, 560, 644, 784, 805, 887, 920, 980, 1127, 1288, 1610, 1774, 1840, 1960, 2254, 2576, 3220, 3548, 3920, 4435, 4508, 5635, 6209, 6440, 7096, 8870, 9016, 11270, 12418, 12880, 14192, 17740, 18032, 20401, 22540, 24836, 31045, 35480, 40802, 43463, 45080, 49672, 62090, 70960, 81604, 86926, 90160, 99344, 102005, 124180, 142807, 163208, 173852, 204010, 217315, 248360, 285614, 326416, 347704, 408020, 434630, 496720, 571228, 695408, 714035, 816040, 869260, 999649, 1142456, 1428070, 1632080, 1738520, 1999298, 2284912, 2856140, 3477040, 3998596, 4998245, 5712280, 7997192, 9996490, 11424560, 15994384, 19992980, 39985960, 79971920]

約数ペア:

[(1, 79971920), (2, 39985960), (4, 19992980), (5, 15994384), (7, 11424560), (8, 9996490), (10, 7997192), (14, 5712280), (16, 4998245), (20, 3998596), (23, 3477040), (28, 2856140), (35, 2284912), (40, 1999298), (46, 1738520), (49, 1632080), (56, 1428070), (70, 1142456), (80, 999649), (92, 869260), (98, 816040), (112, 714035), (115, 695408), (140, 571228), (161, 496720), (184, 434630), (196, 408020), (230, 347704), (245, 326416), (280, 285614), (322, 248360), (368, 217315), (392, 204010), (460, 173852), (490, 163208), (560, 142807), (644, 124180), (784, 102005), (805, 99344), (887, 90160), (920, 86926), (980, 81604), (1127, 70960), (1288, 62090), (1610, 49672), (1774, 45080), (1840, 43463), (1960, 40802), (2254, 35480), (2576, 31045), (3220, 24836), (3548, 22540), (3920, 20401), (4435, 18032), (4508, 17740), (5635, 14192), (6209, 12880), (6440, 12418), (7096, 11270), (8870, 9016)]