127747600

素因数分解:

$2^4\times 5^2\times {\mathrm{389}}^1\times {\mathrm{821}}^1$

素因数の和:1228

約数の個数: 60

約数和(自身を含む): 308077380

約数和(自身を除く): 180329780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 389, 400, 778, 821, 1556, 1642, 1945, 3112, 3284, 3890, 4105, 6224, 6568, 7780, 8210, 9725, 13136, 15560, 16420, 19450, 20525, 31120, 32840, 38900, 41050, 65680, 77800, 82100, 155600, 164200, 319369, 328400, 638738, 1277476, 1596845, 2554952, 3193690, 5109904, 6387380, 7984225, 12774760, 15968450, 25549520, 31936900, 63873800, 127747600]

約数ペア:

[(1, 127747600), (2, 63873800), (4, 31936900), (5, 25549520), (8, 15968450), (10, 12774760), (16, 7984225), (20, 6387380), (25, 5109904), (40, 3193690), (50, 2554952), (80, 1596845), (100, 1277476), (200, 638738), (389, 328400), (400, 319369), (778, 164200), (821, 155600), (1556, 82100), (1642, 77800), (1945, 65680), (3112, 41050), (3284, 38900), (3890, 32840), (4105, 31120), (6224, 20525), (6568, 19450), (7780, 16420), (8210, 15560), (9725, 13136)]