19872090

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31543}}^1$

素因数の和:31563

約数の個数: 48

約数和(自身を含む): 59050368

約数和(自身を除く): 39178278

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 31543, 63086, 94629, 157715, 189258, 220801, 283887, 315430, 441602, 473145, 567774, 662403, 946290, 1104005, 1324806, 1419435, 1987209, 2208010, 2838870, 3312015, 3974418, 6624030, 9936045, 19872090]

約数ペア:

[(1, 19872090), (2, 9936045), (3, 6624030), (5, 3974418), (6, 3312015), (7, 2838870), (9, 2208010), (10, 1987209), (14, 1419435), (15, 1324806), (18, 1104005), (21, 946290), (30, 662403), (35, 567774), (42, 473145), (45, 441602), (63, 315430), (70, 283887), (90, 220801), (105, 189258), (126, 157715), (210, 94629), (315, 63086), (630, 31543)]