2018085520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{6571}}^1$

素因数の和:6944

約数の個数: 80

約数和(自身を含む): 5134046400

約数和(自身を除く): 3115960880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 349, 440, 698, 880, 1396, 1745, 2792, 3490, 3839, 5584, 6571, 6980, 7678, 13142, 13960, 15356, 19195, 26284, 27920, 30712, 32855, 38390, 52568, 61424, 65710, 72281, 76780, 105136, 131420, 144562, 153560, 262840, 289124, 307120, 361405, 525680, 578248, 722810, 1156496, 1445620, 2293279, 2891240, 4586558, 5782480, 9173116, 11466395, 18346232, 22932790, 25226069, 36692464, 45865580, 50452138, 91731160, 100904276, 126130345, 183462320, 201808552, 252260690, 403617104, 504521380, 1009042760, 2018085520]

約数ペア:

[(1, 2018085520), (2, 1009042760), (4, 504521380), (5, 403617104), (8, 252260690), (10, 201808552), (11, 183462320), (16, 126130345), (20, 100904276), (22, 91731160), (40, 50452138), (44, 45865580), (55, 36692464), (80, 25226069), (88, 22932790), (110, 18346232), (176, 11466395), (220, 9173116), (349, 5782480), (440, 4586558), (698, 2891240), (880, 2293279), (1396, 1445620), (1745, 1156496), (2792, 722810), (3490, 578248), (3839, 525680), (5584, 361405), (6571, 307120), (6980, 289124), (7678, 262840), (13142, 153560), (13960, 144562), (15356, 131420), (19195, 105136), (26284, 76780), (27920, 72281), (30712, 65710), (32855, 61424), (38390, 52568)]