28289950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{613}}^1$

素因数の和:709

約数の個数: 48

約数和(自身を含む): 57558816

約数和(自身を除く): 29268866

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 71, 130, 142, 325, 355, 613, 650, 710, 923, 1226, 1775, 1846, 3065, 3550, 4615, 6130, 7969, 9230, 15325, 15938, 23075, 30650, 39845, 43523, 46150, 79690, 87046, 199225, 217615, 398450, 435230, 565799, 1088075, 1131598, 2176150, 2828995, 5657990, 14144975, 28289950]

約数ペア:

[(1, 28289950), (2, 14144975), (5, 5657990), (10, 2828995), (13, 2176150), (25, 1131598), (26, 1088075), (50, 565799), (65, 435230), (71, 398450), (130, 217615), (142, 199225), (325, 87046), (355, 79690), (613, 46150), (650, 43523), (710, 39845), (923, 30650), (1226, 23075), (1775, 15938), (1846, 15325), (3065, 9230), (3550, 7969), (4615, 6130)]