25940205

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 47713536

約数和(自身を除く): 21773331

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 71, 115, 207, 213, 345, 353, 355, 639, 1035, 1059, 1065, 1633, 1765, 3177, 3195, 4899, 5295, 8119, 8165, 14697, 15885, 24357, 24495, 25063, 40595, 73071, 73485, 75189, 121785, 125315, 225567, 365355, 375945, 576449, 1127835, 1729347, 2882245, 5188041, 8646735, 25940205]

約数ペア:

[(1, 25940205), (3, 8646735), (5, 5188041), (9, 2882245), (15, 1729347), (23, 1127835), (45, 576449), (69, 375945), (71, 365355), (115, 225567), (207, 125315), (213, 121785), (345, 75189), (353, 73485), (355, 73071), (639, 40595), (1035, 25063), (1059, 24495), (1065, 24357), (1633, 15885), (1765, 14697), (3177, 8165), (3195, 8119), (4899, 5295)]