20638650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{223}}^1\times {\mathrm{617}}^1$

素因数の和:855

約数の個数: 48

約数和(自身を含む): 51496704

約数和(自身を除く): 30858054

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 223, 446, 617, 669, 1115, 1234, 1338, 1851, 2230, 3085, 3345, 3702, 5575, 6170, 6690, 9255, 11150, 15425, 16725, 18510, 30850, 33450, 46275, 92550, 137591, 275182, 412773, 687955, 825546, 1375910, 2063865, 3439775, 4127730, 6879550, 10319325, 20638650]

約数ペア:

[(1, 20638650), (2, 10319325), (3, 6879550), (5, 4127730), (6, 3439775), (10, 2063865), (15, 1375910), (25, 825546), (30, 687955), (50, 412773), (75, 275182), (150, 137591), (223, 92550), (446, 46275), (617, 33450), (669, 30850), (1115, 18510), (1234, 16725), (1338, 15425), (1851, 11150), (2230, 9255), (3085, 6690), (3345, 6170), (3702, 5575)]