19555690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 44478720

約数和(自身を除く): 24923030

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 109, 110, 154, 218, 233, 385, 466, 545, 763, 770, 1090, 1165, 1199, 1526, 1631, 2330, 2398, 2563, 3262, 3815, 5126, 5995, 7630, 8155, 8393, 11990, 12815, 16310, 16786, 17941, 25397, 25630, 35882, 41965, 50794, 83930, 89705, 126985, 177779, 179410, 253970, 279367, 355558, 558734, 888895, 1396835, 1777790, 1955569, 2793670, 3911138, 9777845, 19555690]

約数ペア:

[(1, 19555690), (2, 9777845), (5, 3911138), (7, 2793670), (10, 1955569), (11, 1777790), (14, 1396835), (22, 888895), (35, 558734), (55, 355558), (70, 279367), (77, 253970), (109, 179410), (110, 177779), (154, 126985), (218, 89705), (233, 83930), (385, 50794), (466, 41965), (545, 35882), (763, 25630), (770, 25397), (1090, 17941), (1165, 16786), (1199, 16310), (1526, 12815), (1631, 11990), (2330, 8393), (2398, 8155), (2563, 7630), (3262, 5995), (3815, 5126)]