201980675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 280711200

約数和(自身を除く): 78730525

約数列:

[1, 5, 13, 25, 43, 65, 97, 149, 215, 325, 485, 559, 745, 1075, 1261, 1937, 2425, 2795, 3725, 4171, 6305, 6407, 9685, 13975, 14453, 20855, 31525, 32035, 48425, 54223, 72265, 83291, 104275, 160175, 187889, 271115, 361325, 416455, 621479, 939445, 1355575, 2082275, 3107395, 4697225, 8079227, 15536975, 40396135, 201980675]

約数ペア:

[(1, 201980675), (5, 40396135), (13, 15536975), (25, 8079227), (43, 4697225), (65, 3107395), (97, 2082275), (149, 1355575), (215, 939445), (325, 621479), (485, 416455), (559, 361325), (745, 271115), (1075, 187889), (1261, 160175), (1937, 104275), (2425, 83291), (2795, 72265), (3725, 54223), (4171, 48425), (6305, 32035), (6407, 31525), (9685, 20855), (13975, 14453)]