20535550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2551}}^1$

素因数の和:2593

約数の個数: 48

約数和(自身を含む): 45568512

約数和(自身を除く): 25032962

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 50, 70, 115, 161, 175, 230, 322, 350, 575, 805, 1150, 1610, 2551, 4025, 5102, 8050, 12755, 17857, 25510, 35714, 58673, 63775, 89285, 117346, 127550, 178570, 293365, 410711, 446425, 586730, 821422, 892850, 1466825, 2053555, 2933650, 4107110, 10267775, 20535550]

約数ペア:

[(1, 20535550), (2, 10267775), (5, 4107110), (7, 2933650), (10, 2053555), (14, 1466825), (23, 892850), (25, 821422), (35, 586730), (46, 446425), (50, 410711), (70, 293365), (115, 178570), (161, 127550), (175, 117346), (230, 89285), (322, 63775), (350, 58673), (575, 35714), (805, 25510), (1150, 17857), (1610, 12755), (2551, 8050), (4025, 5102)]