28551200

素因数分解:

$2^5\times 5^2\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:510

約数の個数: 72

約数和(自身を含む): 70659540

約数和(自身を除く): 42108340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 89, 100, 160, 178, 200, 356, 400, 401, 445, 712, 800, 802, 890, 1424, 1604, 1780, 2005, 2225, 2848, 3208, 3560, 4010, 4450, 6416, 7120, 8020, 8900, 10025, 12832, 14240, 16040, 17800, 20050, 32080, 35600, 35689, 40100, 64160, 71200, 71378, 80200, 142756, 160400, 178445, 285512, 320800, 356890, 571024, 713780, 892225, 1142048, 1427560, 1784450, 2855120, 3568900, 5710240, 7137800, 14275600, 28551200]

約数ペア:

[(1, 28551200), (2, 14275600), (4, 7137800), (5, 5710240), (8, 3568900), (10, 2855120), (16, 1784450), (20, 1427560), (25, 1142048), (32, 892225), (40, 713780), (50, 571024), (80, 356890), (89, 320800), (100, 285512), (160, 178445), (178, 160400), (200, 142756), (356, 80200), (400, 71378), (401, 71200), (445, 64160), (712, 40100), (800, 35689), (802, 35600), (890, 32080), (1424, 20050), (1604, 17800), (1780, 16040), (2005, 14240), (2225, 12832), (2848, 10025), (3208, 8900), (3560, 8020), (4010, 7120), (4450, 6416)]