20681448

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 53654400

約数和(自身を除く): 32972952

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 71, 106, 142, 159, 212, 213, 229, 284, 318, 424, 426, 458, 568, 636, 687, 852, 916, 1272, 1374, 1704, 1832, 2748, 3763, 5496, 7526, 11289, 12137, 15052, 16259, 22578, 24274, 30104, 32518, 36411, 45156, 48548, 48777, 65036, 72822, 90312, 97096, 97554, 130072, 145644, 195108, 291288, 390216, 861727, 1723454, 2585181, 3446908, 5170362, 6893816, 10340724, 20681448]

約数ペア:

[(1, 20681448), (2, 10340724), (3, 6893816), (4, 5170362), (6, 3446908), (8, 2585181), (12, 1723454), (24, 861727), (53, 390216), (71, 291288), (106, 195108), (142, 145644), (159, 130072), (212, 97554), (213, 97096), (229, 90312), (284, 72822), (318, 65036), (424, 48777), (426, 48548), (458, 45156), (568, 36411), (636, 32518), (687, 30104), (852, 24274), (916, 22578), (1272, 16259), (1374, 15052), (1704, 12137), (1832, 11289), (2748, 7526), (3763, 5496)]