28310520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{33703}}^1$

素因数の和:33724

約数の個数: 64

約数和(自身を含む): 97067520

約数和(自身を除く): 68757000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 33703, 67406, 101109, 134812, 168515, 202218, 235921, 269624, 337030, 404436, 471842, 505545, 674060, 707763, 808872, 943684, 1011090, 1179605, 1348120, 1415526, 1887368, 2022180, 2359210, 2831052, 3538815, 4044360, 4718420, 5662104, 7077630, 9436840, 14155260, 28310520]

約数ペア:

[(1, 28310520), (2, 14155260), (3, 9436840), (4, 7077630), (5, 5662104), (6, 4718420), (7, 4044360), (8, 3538815), (10, 2831052), (12, 2359210), (14, 2022180), (15, 1887368), (20, 1415526), (21, 1348120), (24, 1179605), (28, 1011090), (30, 943684), (35, 808872), (40, 707763), (42, 674060), (56, 505545), (60, 471842), (70, 404436), (84, 337030), (105, 269624), (120, 235921), (140, 202218), (168, 168515), (210, 134812), (280, 101109), (420, 67406), (840, 33703)]