427356215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2064

約数の個数: 48

約数和(自身を含む): 632448000

約数和(自身を除く): 205091785

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 169, 253, 299, 715, 845, 1265, 1495, 1859, 1999, 3289, 3887, 9295, 9995, 16445, 19435, 21989, 25987, 42757, 45977, 109945, 129935, 213785, 229885, 285857, 337831, 505747, 597701, 1429285, 1689155, 2528735, 2988505, 3716141, 6574711, 7770113, 18580705, 32873555, 38850565, 85471243, 427356215]

約数ペア:

[(1, 427356215), (5, 85471243), (11, 38850565), (13, 32873555), (23, 18580705), (55, 7770113), (65, 6574711), (115, 3716141), (143, 2988505), (169, 2528735), (253, 1689155), (299, 1429285), (715, 597701), (845, 505747), (1265, 337831), (1495, 285857), (1859, 229885), (1999, 213785), (3289, 129935), (3887, 109945), (9295, 45977), (9995, 42757), (16445, 25987), (19435, 21989)]