22720940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{743}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 52496640

約数和(自身を除く): 29775700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 743, 1390, 1486, 1529, 2780, 2972, 3058, 3715, 6116, 7430, 7645, 8173, 14860, 15290, 16346, 30580, 32692, 40865, 81730, 103277, 163460, 206554, 413108, 516385, 1032770, 1136047, 2065540, 2272094, 4544188, 5680235, 11360470, 22720940]

約数ペア:

[(1, 22720940), (2, 11360470), (4, 5680235), (5, 4544188), (10, 2272094), (11, 2065540), (20, 1136047), (22, 1032770), (44, 516385), (55, 413108), (110, 206554), (139, 163460), (220, 103277), (278, 81730), (556, 40865), (695, 32692), (743, 30580), (1390, 16346), (1486, 15290), (1529, 14860), (2780, 8173), (2972, 7645), (3058, 7430), (3715, 6116)]