205012731

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:912

約数の個数: 64

約数和(自身を含む): 363626496

約数和(自身を除く): 158613765

約数列:

[1, 3, 7, 11, 21, 23, 33, 47, 69, 77, 141, 161, 231, 253, 329, 483, 517, 759, 821, 987, 1081, 1551, 1771, 2463, 3243, 3619, 5313, 5747, 7567, 9031, 10857, 11891, 17241, 18883, 22701, 27093, 35673, 38587, 56649, 63217, 83237, 115761, 132181, 189651, 207713, 249711, 270109, 396543, 424457, 623139, 810327, 887501, 1273371, 1453991, 2662503, 2971199, 4361973, 6212507, 8913597, 9762511, 18637521, 29287533, 68337577, 205012731]

約数ペア:

[(1, 205012731), (3, 68337577), (7, 29287533), (11, 18637521), (21, 9762511), (23, 8913597), (33, 6212507), (47, 4361973), (69, 2971199), (77, 2662503), (141, 1453991), (161, 1273371), (231, 887501), (253, 810327), (329, 623139), (483, 424457), (517, 396543), (759, 270109), (821, 249711), (987, 207713), (1081, 189651), (1551, 132181), (1771, 115761), (2463, 83237), (3243, 63217), (3619, 56649), (5313, 38587), (5747, 35673), (7567, 27093), (9031, 22701), (10857, 18883), (11891, 17241)]