69776720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{397}}^1$

素因数の和:449

約数の個数: 80

約数和(自身を含む): 176186640

約数和(自身を除く): 106409920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 397, 520, 676, 794, 845, 1040, 1352, 1588, 1690, 1985, 2197, 2704, 3176, 3380, 3970, 4394, 5161, 6352, 6760, 7940, 8788, 10322, 10985, 13520, 15880, 17576, 20644, 21970, 25805, 31760, 35152, 41288, 43940, 51610, 67093, 82576, 87880, 103220, 134186, 175760, 206440, 268372, 335465, 412880, 536744, 670930, 872209, 1073488, 1341860, 1744418, 2683720, 3488836, 4361045, 5367440, 6977672, 8722090, 13955344, 17444180, 34888360, 69776720]

約数ペア:

[(1, 69776720), (2, 34888360), (4, 17444180), (5, 13955344), (8, 8722090), (10, 6977672), (13, 5367440), (16, 4361045), (20, 3488836), (26, 2683720), (40, 1744418), (52, 1341860), (65, 1073488), (80, 872209), (104, 670930), (130, 536744), (169, 412880), (208, 335465), (260, 268372), (338, 206440), (397, 175760), (520, 134186), (676, 103220), (794, 87880), (845, 82576), (1040, 67093), (1352, 51610), (1588, 43940), (1690, 41288), (1985, 35152), (2197, 31760), (2704, 25805), (3176, 21970), (3380, 20644), (3970, 17576), (4394, 15880), (5161, 13520), (6352, 10985), (6760, 10322), (7940, 8788)]