1291395

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{251}}^1$

素因数の和:280

約数の個数: 32

約数和(自身を含む): 2419200

約数和(自身を除く): 1127805

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 251, 343, 735, 753, 1029, 1255, 1715, 1757, 3765, 5145, 5271, 8785, 12299, 26355, 36897, 61495, 86093, 184485, 258279, 430465, 1291395]

約数ペア:

[(1, 1291395), (3, 430465), (5, 258279), (7, 184485), (15, 86093), (21, 61495), (35, 36897), (49, 26355), (105, 12299), (147, 8785), (245, 5271), (251, 5145), (343, 3765), (735, 1757), (753, 1715), (1029, 1255)]