20990832

素因数分解:

$2^4\times 3^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:246

約数の個数: 80

約数和(自身を含む): 56460672

約数和(自身を除く): 35469840

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 61, 67, 107, 122, 134, 183, 201, 214, 244, 268, 321, 366, 402, 428, 488, 536, 642, 732, 804, 856, 976, 1072, 1284, 1464, 1608, 1712, 2568, 2928, 3216, 4087, 5136, 6527, 7169, 8174, 12261, 13054, 14338, 16348, 19581, 21507, 24522, 26108, 28676, 32696, 39162, 43014, 49044, 52216, 57352, 65392, 78324, 86028, 98088, 104432, 114704, 156648, 172056, 196176, 313296, 344112, 437309, 874618, 1311927, 1749236, 2623854, 3498472, 5247708, 6996944, 10495416, 20990832]

約数ペア:

[(1, 20990832), (2, 10495416), (3, 6996944), (4, 5247708), (6, 3498472), (8, 2623854), (12, 1749236), (16, 1311927), (24, 874618), (48, 437309), (61, 344112), (67, 313296), (107, 196176), (122, 172056), (134, 156648), (183, 114704), (201, 104432), (214, 98088), (244, 86028), (268, 78324), (321, 65392), (366, 57352), (402, 52216), (428, 49044), (488, 43014), (536, 39162), (642, 32696), (732, 28676), (804, 26108), (856, 24522), (976, 21507), (1072, 19581), (1284, 16348), (1464, 14338), (1608, 13054), (1712, 12261), (2568, 8174), (2928, 7169), (3216, 6527), (4087, 5136)]