12857845

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 21143808

約数和(自身を除く): 8285963

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 91, 143, 245, 367, 385, 455, 539, 637, 715, 1001, 1835, 2569, 2695, 3185, 4037, 4771, 5005, 7007, 12845, 17983, 20185, 23855, 28259, 33397, 35035, 52481, 89915, 141295, 166985, 197813, 233779, 262405, 367367, 989065, 1168895, 1836835, 2571569, 12857845]

約数ペア:

[(1, 12857845), (5, 2571569), (7, 1836835), (11, 1168895), (13, 989065), (35, 367367), (49, 262405), (55, 233779), (65, 197813), (77, 166985), (91, 141295), (143, 89915), (245, 52481), (367, 35035), (385, 33397), (455, 28259), (539, 23855), (637, 20185), (715, 17983), (1001, 12845), (1835, 7007), (2569, 5005), (2695, 4771), (3185, 4037)]