18907322120

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1123}}^1\times {\mathrm{1213}}^1$

素因数の和:2694

約数の個数: 64

約数和(自身を含む): 42737267520

約数和(自身を除く): 23829945400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1123, 1213, 1388, 1735, 2246, 2426, 2776, 3470, 4492, 4852, 5615, 6065, 6940, 8984, 9704, 11230, 12130, 13880, 22460, 24260, 44920, 48520, 389681, 420911, 779362, 841822, 1362199, 1558724, 1683644, 1948405, 2104555, 2724398, 3117448, 3367288, 3896810, 4209110, 5448796, 6810995, 7793620, 8418220, 10897592, 13621990, 15587240, 16836440, 27243980, 54487960, 472683053, 945366106, 1890732212, 2363415265, 3781464424, 4726830530, 9453661060, 18907322120]

約数ペア:

[(1, 18907322120), (2, 9453661060), (4, 4726830530), (5, 3781464424), (8, 2363415265), (10, 1890732212), (20, 945366106), (40, 472683053), (347, 54487960), (694, 27243980), (1123, 16836440), (1213, 15587240), (1388, 13621990), (1735, 10897592), (2246, 8418220), (2426, 7793620), (2776, 6810995), (3470, 5448796), (4492, 4209110), (4852, 3896810), (5615, 3367288), (6065, 3117448), (6940, 2724398), (8984, 2104555), (9704, 1948405), (11230, 1683644), (12130, 1558724), (13880, 1362199), (22460, 841822), (24260, 779362), (44920, 420911), (48520, 389681)]