65280400

素因数分解:

$2^4\times 5^2\times {\mathrm{293}}^1\times {\mathrm{557}}^1$

素因数の和:868

約数の個数: 60

約数和(自身を含む): 157653972

約数和(自身を除く): 92373572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 293, 400, 557, 586, 1114, 1172, 1465, 2228, 2344, 2785, 2930, 4456, 4688, 5570, 5860, 7325, 8912, 11140, 11720, 13925, 14650, 22280, 23440, 27850, 29300, 44560, 55700, 58600, 111400, 117200, 163201, 222800, 326402, 652804, 816005, 1305608, 1632010, 2611216, 3264020, 4080025, 6528040, 8160050, 13056080, 16320100, 32640200, 65280400]

約数ペア:

[(1, 65280400), (2, 32640200), (4, 16320100), (5, 13056080), (8, 8160050), (10, 6528040), (16, 4080025), (20, 3264020), (25, 2611216), (40, 1632010), (50, 1305608), (80, 816005), (100, 652804), (200, 326402), (293, 222800), (400, 163201), (557, 117200), (586, 111400), (1114, 58600), (1172, 55700), (1465, 44560), (2228, 29300), (2344, 27850), (2785, 23440), (2930, 22280), (4456, 14650), (4688, 13925), (5570, 11720), (5860, 11140), (7325, 8912)]