212867875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 310542336

約数和(自身を除く): 97674461

約数列:

[1, 5, 11, 23, 25, 53, 55, 115, 125, 127, 253, 265, 275, 575, 583, 635, 1219, 1265, 1325, 1375, 1397, 2875, 2915, 2921, 3175, 6095, 6325, 6625, 6731, 6985, 13409, 14575, 14605, 15875, 30475, 31625, 32131, 33655, 34925, 67045, 72875, 73025, 74041, 152375, 154813, 160655, 168275, 174625, 335225, 365125, 370205, 774065, 803275, 841375, 1676125, 1702943, 1851025, 3870325, 4016375, 8514715, 9255125, 19351625, 42573575, 212867875]

約数ペア:

[(1, 212867875), (5, 42573575), (11, 19351625), (23, 9255125), (25, 8514715), (53, 4016375), (55, 3870325), (115, 1851025), (125, 1702943), (127, 1676125), (253, 841375), (265, 803275), (275, 774065), (575, 370205), (583, 365125), (635, 335225), (1219, 174625), (1265, 168275), (1325, 160655), (1375, 154813), (1397, 152375), (2875, 74041), (2915, 73025), (2921, 72875), (3175, 67045), (6095, 34925), (6325, 33655), (6625, 32131), (6731, 31625), (6985, 30475), (13409, 15875), (14575, 14605)]