18487210

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1301}}^1$

素因数の和:1351

約数の個数: 48

約数和(自身を含む): 40075560

約数和(自身を除く): 21588350

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 49, 58, 70, 98, 145, 203, 245, 290, 406, 490, 1015, 1301, 1421, 2030, 2602, 2842, 6505, 7105, 9107, 13010, 14210, 18214, 37729, 45535, 63749, 75458, 91070, 127498, 188645, 264103, 318745, 377290, 528206, 637490, 1320515, 1848721, 2641030, 3697442, 9243605, 18487210]

約数ペア:

[(1, 18487210), (2, 9243605), (5, 3697442), (7, 2641030), (10, 1848721), (14, 1320515), (29, 637490), (35, 528206), (49, 377290), (58, 318745), (70, 264103), (98, 188645), (145, 127498), (203, 91070), (245, 75458), (290, 63749), (406, 45535), (490, 37729), (1015, 18214), (1301, 14210), (1421, 13010), (2030, 9107), (2602, 7105), (2842, 6505)]