20484904

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 45360000

約数和(自身を除く): 24875096

約数列:

[1, 2, 4, 8, 11, 22, 23, 29, 44, 46, 58, 88, 92, 116, 184, 232, 253, 319, 349, 506, 638, 667, 698, 1012, 1276, 1334, 1396, 2024, 2552, 2668, 2792, 3839, 5336, 7337, 7678, 8027, 10121, 14674, 15356, 16054, 20242, 29348, 30712, 32108, 40484, 58696, 64216, 80968, 88297, 111331, 176594, 222662, 232783, 353188, 445324, 465566, 706376, 890648, 931132, 1862264, 2560613, 5121226, 10242452, 20484904]

約数ペア:

[(1, 20484904), (2, 10242452), (4, 5121226), (8, 2560613), (11, 1862264), (22, 931132), (23, 890648), (29, 706376), (44, 465566), (46, 445324), (58, 353188), (88, 232783), (92, 222662), (116, 176594), (184, 111331), (232, 88297), (253, 80968), (319, 64216), (349, 58696), (506, 40484), (638, 32108), (667, 30712), (698, 29348), (1012, 20242), (1276, 16054), (1334, 15356), (1396, 14674), (2024, 10121), (2552, 8027), (2668, 7678), (2792, 7337), (3839, 5336)]