18771410

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1321}}^1$

素因数の和:1371

約数の個数: 48

約数和(自身を含む): 40691160

約数和(自身を除く): 21919750

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 49, 58, 70, 98, 145, 203, 245, 290, 406, 490, 1015, 1321, 1421, 2030, 2642, 2842, 6605, 7105, 9247, 13210, 14210, 18494, 38309, 46235, 64729, 76618, 92470, 129458, 191545, 268163, 323645, 383090, 536326, 647290, 1340815, 1877141, 2681630, 3754282, 9385705, 18771410]

約数ペア:

[(1, 18771410), (2, 9385705), (5, 3754282), (7, 2681630), (10, 1877141), (14, 1340815), (29, 647290), (35, 536326), (49, 383090), (58, 323645), (70, 268163), (98, 191545), (145, 129458), (203, 92470), (245, 76618), (290, 64729), (406, 46235), (490, 38309), (1015, 18494), (1321, 14210), (1421, 13210), (2030, 9247), (2642, 7105), (2842, 6605)]