20941360

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{449}}^1$

素因数の和:526

約数の個数: 80

約数和(自身を含む): 54237600

約数和(自身を除く): 33296240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 53, 55, 80, 88, 106, 110, 176, 212, 220, 265, 424, 440, 449, 530, 583, 848, 880, 898, 1060, 1166, 1796, 2120, 2245, 2332, 2915, 3592, 4240, 4490, 4664, 4939, 5830, 7184, 8980, 9328, 9878, 11660, 17960, 19756, 23320, 23797, 24695, 35920, 39512, 46640, 47594, 49390, 79024, 95188, 98780, 118985, 190376, 197560, 237970, 261767, 380752, 395120, 475940, 523534, 951880, 1047068, 1308835, 1903760, 2094136, 2617670, 4188272, 5235340, 10470680, 20941360]

約数ペア:

[(1, 20941360), (2, 10470680), (4, 5235340), (5, 4188272), (8, 2617670), (10, 2094136), (11, 1903760), (16, 1308835), (20, 1047068), (22, 951880), (40, 523534), (44, 475940), (53, 395120), (55, 380752), (80, 261767), (88, 237970), (106, 197560), (110, 190376), (176, 118985), (212, 98780), (220, 95188), (265, 79024), (424, 49390), (440, 47594), (449, 46640), (530, 39512), (583, 35920), (848, 24695), (880, 23797), (898, 23320), (1060, 19756), (1166, 17960), (1796, 11660), (2120, 9878), (2245, 9328), (2332, 8980), (2915, 7184), (3592, 5830), (4240, 4939), (4490, 4664)]