21262600

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2593}}^1$

素因数の和:2650

約数の個数: 48

約数和(自身を含む): 50660820

約数和(自身を除く): 29398220

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 2593, 4100, 5186, 8200, 10372, 12965, 20744, 25930, 51860, 64825, 103720, 106313, 129650, 212626, 259300, 425252, 518600, 531565, 850504, 1063130, 2126260, 2657825, 4252520, 5315650, 10631300, 21262600]

約数ペア:

[(1, 21262600), (2, 10631300), (4, 5315650), (5, 4252520), (8, 2657825), (10, 2126260), (20, 1063130), (25, 850504), (40, 531565), (41, 518600), (50, 425252), (82, 259300), (100, 212626), (164, 129650), (200, 106313), (205, 103720), (328, 64825), (410, 51860), (820, 25930), (1025, 20744), (1640, 12965), (2050, 10372), (2593, 8200), (4100, 5186)]