81799965

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2087}}^1$

素因数の和:2178

約数の個数: 48

約数和(自身を含む): 155046528

約数和(自身を除く): 73246563

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 67, 117, 195, 201, 335, 585, 603, 871, 1005, 2087, 2613, 3015, 4355, 6261, 7839, 10435, 13065, 18783, 27131, 31305, 39195, 81393, 93915, 135655, 139829, 244179, 406965, 419487, 699145, 1220895, 1258461, 1817777, 2097435, 5453331, 6292305, 9088885, 16359993, 27266655, 81799965]

約数ペア:

[(1, 81799965), (3, 27266655), (5, 16359993), (9, 9088885), (13, 6292305), (15, 5453331), (39, 2097435), (45, 1817777), (65, 1258461), (67, 1220895), (117, 699145), (195, 419487), (201, 406965), (335, 244179), (585, 139829), (603, 135655), (871, 93915), (1005, 81393), (2087, 39195), (2613, 31305), (3015, 27131), (4355, 18783), (6261, 13065), (7839, 10435)]