25561250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^2\times {\mathrm{13}}^2$

素因数の和:70

約数の個数: 90

約数和(自身を含む): 57026277

約数和(自身を除く): 31465027

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 121, 125, 130, 143, 169, 242, 250, 275, 286, 325, 338, 550, 605, 625, 650, 715, 845, 1210, 1250, 1375, 1430, 1573, 1625, 1690, 1859, 2750, 3025, 3146, 3250, 3575, 3718, 4225, 6050, 6875, 7150, 7865, 8125, 8450, 9295, 13750, 15125, 15730, 16250, 17875, 18590, 20449, 21125, 30250, 35750, 39325, 40898, 42250, 46475, 75625, 78650, 89375, 92950, 102245, 105625, 151250, 178750, 196625, 204490, 211250, 232375, 393250, 464750, 511225, 983125, 1022450, 1161875, 1966250, 2323750, 2556125, 5112250, 12780625, 25561250]

約数ペア:

[(1, 25561250), (2, 12780625), (5, 5112250), (10, 2556125), (11, 2323750), (13, 1966250), (22, 1161875), (25, 1022450), (26, 983125), (50, 511225), (55, 464750), (65, 393250), (110, 232375), (121, 211250), (125, 204490), (130, 196625), (143, 178750), (169, 151250), (242, 105625), (250, 102245), (275, 92950), (286, 89375), (325, 78650), (338, 75625), (550, 46475), (605, 42250), (625, 40898), (650, 39325), (715, 35750), (845, 30250), (1210, 21125), (1250, 20449), (1375, 18590), (1430, 17875), (1573, 16250), (1625, 15730), (1690, 15125), (1859, 13750), (2750, 9295), (3025, 8450), (3146, 8125), (3250, 7865), (3575, 7150), (3718, 6875), (4225, 6050)]