1971426520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1307}}^1\times {\mathrm{5387}}^1$

素因数の和:6712

約数の個数: 64

約数和(自身を含む): 5074202880

約数和(自身を除く): 3102776360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1307, 2614, 5228, 5387, 6535, 9149, 10456, 10774, 13070, 18298, 21548, 26140, 26935, 36596, 37709, 43096, 45745, 52280, 53870, 73192, 75418, 91490, 107740, 150836, 182980, 188545, 215480, 301672, 365960, 377090, 754180, 1508360, 7040809, 14081618, 28163236, 35204045, 49285663, 56326472, 70408090, 98571326, 140816180, 197142652, 246428315, 281632360, 394285304, 492856630, 985713260, 1971426520]

約数ペア:

[(1, 1971426520), (2, 985713260), (4, 492856630), (5, 394285304), (7, 281632360), (8, 246428315), (10, 197142652), (14, 140816180), (20, 98571326), (28, 70408090), (35, 56326472), (40, 49285663), (56, 35204045), (70, 28163236), (140, 14081618), (280, 7040809), (1307, 1508360), (2614, 754180), (5228, 377090), (5387, 365960), (6535, 301672), (9149, 215480), (10456, 188545), (10774, 182980), (13070, 150836), (18298, 107740), (21548, 91490), (26140, 75418), (26935, 73192), (36596, 53870), (37709, 52280), (43096, 45745)]