6640445

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 9718272

約数和(自身を除く): 3077827

約数列:

[1, 5, 7, 23, 35, 73, 113, 115, 161, 365, 511, 565, 791, 805, 1679, 2555, 2599, 3955, 8249, 8395, 11753, 12995, 18193, 41245, 57743, 58765, 90965, 189727, 288715, 948635, 1328089, 6640445]

約数ペア:

[(1, 6640445), (5, 1328089), (7, 948635), (23, 288715), (35, 189727), (73, 90965), (113, 58765), (115, 57743), (161, 41245), (365, 18193), (511, 12995), (565, 11753), (791, 8395), (805, 8249), (1679, 3955), (2555, 2599)]