20011728

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:424

約数の個数: 80

約数和(自身を含む): 56996352

約数和(自身を除く): 36984624

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 151, 176, 251, 264, 302, 453, 502, 528, 604, 753, 906, 1004, 1208, 1506, 1661, 1812, 2008, 2416, 2761, 3012, 3322, 3624, 4016, 4983, 5522, 6024, 6644, 7248, 8283, 9966, 11044, 12048, 13288, 16566, 19932, 22088, 26576, 33132, 37901, 39864, 44176, 66264, 75802, 79728, 113703, 132528, 151604, 227406, 303208, 416911, 454812, 606416, 833822, 909624, 1250733, 1667644, 1819248, 2501466, 3335288, 5002932, 6670576, 10005864, 20011728]

約数ペア:

[(1, 20011728), (2, 10005864), (3, 6670576), (4, 5002932), (6, 3335288), (8, 2501466), (11, 1819248), (12, 1667644), (16, 1250733), (22, 909624), (24, 833822), (33, 606416), (44, 454812), (48, 416911), (66, 303208), (88, 227406), (132, 151604), (151, 132528), (176, 113703), (251, 79728), (264, 75802), (302, 66264), (453, 44176), (502, 39864), (528, 37901), (604, 33132), (753, 26576), (906, 22088), (1004, 19932), (1208, 16566), (1506, 13288), (1661, 12048), (1812, 11044), (2008, 9966), (2416, 8283), (2761, 7248), (3012, 6644), (3322, 6024), (3624, 5522), (4016, 4983)]