71191100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 164833200

約数和(自身を除く): 93642100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 89, 95, 100, 178, 190, 356, 380, 421, 445, 475, 842, 890, 950, 1684, 1691, 1780, 1900, 2105, 2225, 3382, 4210, 4450, 6764, 7999, 8420, 8455, 8900, 10525, 15998, 16910, 21050, 31996, 33820, 37469, 39995, 42100, 42275, 74938, 79990, 84550, 149876, 159980, 169100, 187345, 199975, 374690, 399950, 711911, 749380, 799900, 936725, 1423822, 1873450, 2847644, 3559555, 3746900, 7119110, 14238220, 17797775, 35595550, 71191100]

約数ペア:

[(1, 71191100), (2, 35595550), (4, 17797775), (5, 14238220), (10, 7119110), (19, 3746900), (20, 3559555), (25, 2847644), (38, 1873450), (50, 1423822), (76, 936725), (89, 799900), (95, 749380), (100, 711911), (178, 399950), (190, 374690), (356, 199975), (380, 187345), (421, 169100), (445, 159980), (475, 149876), (842, 84550), (890, 79990), (950, 74938), (1684, 42275), (1691, 42100), (1780, 39995), (1900, 37469), (2105, 33820), (2225, 31996), (3382, 21050), (4210, 16910), (4450, 15998), (6764, 10525), (7999, 8900), (8420, 8455)]