2017877820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{686353}}^1$

素因数の和:686379

約数の個数: 72

約数和(自身を含む): 6572525904

約数和(自身を除く): 4554648084

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 686353, 1372706, 2059059, 2745412, 3431765, 4118118, 4804471, 6863530, 8236236, 9608942, 10295295, 13727060, 14413413, 19217884, 20590590, 24022355, 28826826, 33631297, 41181180, 48044710, 57653652, 67262594, 72067065, 96089420, 100893891, 134525188, 144134130, 168156485, 201787782, 288268260, 336312970, 403575564, 504469455, 672625940, 1008938910, 2017877820]

約数ペア:

[(1, 2017877820), (2, 1008938910), (3, 672625940), (4, 504469455), (5, 403575564), (6, 336312970), (7, 288268260), (10, 201787782), (12, 168156485), (14, 144134130), (15, 134525188), (20, 100893891), (21, 96089420), (28, 72067065), (30, 67262594), (35, 57653652), (42, 48044710), (49, 41181180), (60, 33631297), (70, 28826826), (84, 24022355), (98, 20590590), (105, 19217884), (140, 14413413), (147, 13727060), (196, 10295295), (210, 9608942), (245, 8236236), (294, 6863530), (420, 4804471), (490, 4118118), (588, 3431765), (735, 2745412), (980, 2059059), (1470, 1372706), (2940, 686353)]