640060225

素因数分解:

$5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{2411}}^1$

素因数の和:2506

約数の個数: 48

約数和(自身を含む): 954688896

約数和(自身を除く): 314628671

約数列:

[1, 5, 7, 25, 35, 37, 41, 175, 185, 205, 259, 287, 925, 1025, 1295, 1435, 1517, 2411, 6475, 7175, 7585, 10619, 12055, 16877, 37925, 53095, 60275, 84385, 89207, 98851, 265475, 421925, 446035, 494255, 624449, 691957, 2230175, 2471275, 3122245, 3459785, 3657487, 15611225, 17298925, 18287435, 25602409, 91437175, 128012045, 640060225]

約数ペア:

[(1, 640060225), (5, 128012045), (7, 91437175), (25, 25602409), (35, 18287435), (37, 17298925), (41, 15611225), (175, 3657487), (185, 3459785), (205, 3122245), (259, 2471275), (287, 2230175), (925, 691957), (1025, 624449), (1295, 494255), (1435, 446035), (1517, 421925), (2411, 265475), (6475, 98851), (7175, 89207), (7585, 84385), (10619, 60275), (12055, 53095), (16877, 37925)]