1387505805

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{41}}^2\times {\mathrm{1123}}^1$

素因数の和:1227

約数の個数: 72

約数和(自身を含む): 2649339936

約数和(自身を除く): 1261834131

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 49, 105, 123, 147, 205, 245, 287, 615, 735, 861, 1123, 1435, 1681, 2009, 3369, 4305, 5043, 5615, 6027, 7861, 8405, 10045, 11767, 16845, 23583, 25215, 30135, 35301, 39305, 46043, 55027, 58835, 82369, 117915, 138129, 165081, 176505, 230215, 247107, 275135, 322301, 411845, 690645, 825405, 966903, 1235535, 1611505, 1887763, 2256107, 4834515, 5663289, 6768321, 9438815, 11280535, 13214341, 28316445, 33841605, 39643023, 66071705, 92500387, 198215115, 277501161, 462501935, 1387505805]

約数ペア:

[(1, 1387505805), (3, 462501935), (5, 277501161), (7, 198215115), (15, 92500387), (21, 66071705), (35, 39643023), (41, 33841605), (49, 28316445), (105, 13214341), (123, 11280535), (147, 9438815), (205, 6768321), (245, 5663289), (287, 4834515), (615, 2256107), (735, 1887763), (861, 1611505), (1123, 1235535), (1435, 966903), (1681, 825405), (2009, 690645), (3369, 411845), (4305, 322301), (5043, 275135), (5615, 247107), (6027, 230215), (7861, 176505), (8405, 165081), (10045, 138129), (11767, 117915), (16845, 82369), (23583, 58835), (25215, 55027), (30135, 46043), (35301, 39305)]