388575999

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{239}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 652354560

約数和(自身を除く): 263778561

約数列:

[1, 3, 7, 9, 21, 63, 131, 197, 239, 393, 591, 717, 917, 1179, 1379, 1673, 1773, 2151, 2751, 4137, 5019, 8253, 12411, 15057, 25807, 31309, 47083, 77421, 93927, 141249, 180649, 219163, 232263, 281781, 329581, 423747, 541947, 657489, 988743, 1625841, 1972467, 2966229, 6167873, 18503619, 43175111, 55510857, 129525333, 388575999]

約数ペア:

[(1, 388575999), (3, 129525333), (7, 55510857), (9, 43175111), (21, 18503619), (63, 6167873), (131, 2966229), (197, 1972467), (239, 1625841), (393, 988743), (591, 657489), (717, 541947), (917, 423747), (1179, 329581), (1379, 281781), (1673, 232263), (1773, 219163), (2151, 180649), (2751, 141249), (4137, 93927), (5019, 77421), (8253, 47083), (12411, 31309), (15057, 25807)]