2580986720

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1240859}}^1$

素因数の和:1240887

約数の個数: 48

約数和(自身を含む): 6566631120

約数和(自身を除く): 3985644400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 1240859, 2481718, 4963436, 6204295, 9926872, 12408590, 16131167, 19853744, 24817180, 32262334, 39707488, 49634360, 64524668, 80655835, 99268720, 129049336, 161311670, 198537440, 258098672, 322623340, 516197344, 645246680, 1290493360, 2580986720]

約数ペア:

[(1, 2580986720), (2, 1290493360), (4, 645246680), (5, 516197344), (8, 322623340), (10, 258098672), (13, 198537440), (16, 161311670), (20, 129049336), (26, 99268720), (32, 80655835), (40, 64524668), (52, 49634360), (65, 39707488), (80, 32262334), (104, 24817180), (130, 19853744), (160, 16131167), (208, 12408590), (260, 9926872), (416, 6204295), (520, 4963436), (1040, 2481718), (2080, 1240859)]