20290522

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:366

約数の個数: 32

約数和(自身を含む): 35769600

約数和(自身を除く): 15479078

約数列:

[1, 2, 7, 14, 71, 137, 142, 149, 274, 298, 497, 959, 994, 1043, 1918, 2086, 9727, 10579, 19454, 20413, 21158, 40826, 68089, 74053, 136178, 142891, 148106, 285782, 1449323, 2898646, 10145261, 20290522]

約数ペア:

[(1, 20290522), (2, 10145261), (7, 2898646), (14, 1449323), (71, 285782), (137, 148106), (142, 142891), (149, 136178), (274, 74053), (298, 68089), (497, 40826), (959, 21158), (994, 20413), (1043, 19454), (1918, 10579), (2086, 9727)]