219492020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:345

約数の個数: 96

約数和(自身を含む): 519160320

約数和(自身を除く): 299668300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 79, 110, 146, 158, 173, 220, 292, 316, 346, 365, 395, 692, 730, 790, 803, 865, 869, 1460, 1580, 1606, 1730, 1738, 1903, 3212, 3460, 3476, 3806, 4015, 4345, 5767, 7612, 8030, 8690, 9515, 11534, 12629, 13667, 16060, 17380, 19030, 23068, 25258, 27334, 28835, 38060, 50516, 54668, 57670, 63145, 63437, 68335, 115340, 126290, 126874, 136670, 138919, 150337, 252580, 253748, 273340, 277838, 300674, 317185, 555676, 601348, 634370, 694595, 751685, 997691, 1268740, 1389190, 1503370, 1995382, 2778380, 3006740, 3990764, 4988455, 9976910, 10974601, 19953820, 21949202, 43898404, 54873005, 109746010, 219492020]

約数ペア:

[(1, 219492020), (2, 109746010), (4, 54873005), (5, 43898404), (10, 21949202), (11, 19953820), (20, 10974601), (22, 9976910), (44, 4988455), (55, 3990764), (73, 3006740), (79, 2778380), (110, 1995382), (146, 1503370), (158, 1389190), (173, 1268740), (220, 997691), (292, 751685), (316, 694595), (346, 634370), (365, 601348), (395, 555676), (692, 317185), (730, 300674), (790, 277838), (803, 273340), (865, 253748), (869, 252580), (1460, 150337), (1580, 138919), (1606, 136670), (1730, 126874), (1738, 126290), (1903, 115340), (3212, 68335), (3460, 63437), (3476, 63145), (3806, 57670), (4015, 54668), (4345, 50516), (5767, 38060), (7612, 28835), (8030, 27334), (8690, 25258), (9515, 23068), (11534, 19030), (12629, 17380), (13667, 16060)]