81910015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{887}}^1$

素因数の和:999

約数の個数: 32

約数和(自身を含む): 113550336

約数和(自身を除く): 31640321

約数列:

[1, 5, 11, 23, 55, 73, 115, 253, 365, 803, 887, 1265, 1679, 4015, 4435, 8395, 9757, 18469, 20401, 48785, 64751, 92345, 102005, 224411, 323755, 712261, 1122055, 1489273, 3561305, 7446365, 16382003, 81910015]

約数ペア:

[(1, 81910015), (5, 16382003), (11, 7446365), (23, 3561305), (55, 1489273), (73, 1122055), (115, 712261), (253, 323755), (365, 224411), (803, 102005), (887, 92345), (1265, 64751), (1679, 48785), (4015, 20401), (4435, 18469), (8395, 9757)]