20187829585

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1\times {\mathrm{3121}}^1$

素因数の和:3514

約数の個数: 64

約数和(自身を含む): 30879926784

約数和(自身を除く): 10692097199

約数列:

[1, 5, 7, 11, 35, 53, 55, 77, 265, 317, 371, 385, 583, 1585, 1855, 2219, 2915, 3121, 3487, 4081, 11095, 15605, 16801, 17435, 20405, 21847, 24409, 34331, 84005, 109235, 117607, 122045, 165413, 171655, 184811, 240317, 588035, 827065, 924055, 989357, 1157891, 1201585, 1293677, 1819543, 4946785, 5789455, 6468385, 6925499, 9097715, 10882927, 12736801, 34627495, 52435921, 54414635, 63684005, 76180489, 262179605, 367051447, 380902445, 576795131, 1835257235, 2883975655, 4037565917, 20187829585]

約数ペア:

[(1, 20187829585), (5, 4037565917), (7, 2883975655), (11, 1835257235), (35, 576795131), (53, 380902445), (55, 367051447), (77, 262179605), (265, 76180489), (317, 63684005), (371, 54414635), (385, 52435921), (583, 34627495), (1585, 12736801), (1855, 10882927), (2219, 9097715), (2915, 6925499), (3121, 6468385), (3487, 5789455), (4081, 4946785), (11095, 1819543), (15605, 1293677), (16801, 1201585), (17435, 1157891), (20405, 989357), (21847, 924055), (24409, 827065), (34331, 588035), (84005, 240317), (109235, 184811), (117607, 171655), (122045, 165413)]