20281488

素因数分解:

$2^4\times 3^1\times {\mathrm{521}}^1\times {\mathrm{811}}^1$

素因数の和:1343

約数の個数: 40

約数和(自身を含む): 52559136

約数和(自身を除く): 32277648

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 521, 811, 1042, 1563, 1622, 2084, 2433, 3126, 3244, 4168, 4866, 6252, 6488, 8336, 9732, 12504, 12976, 19464, 25008, 38928, 422531, 845062, 1267593, 1690124, 2535186, 3380248, 5070372, 6760496, 10140744, 20281488]

約数ペア:

[(1, 20281488), (2, 10140744), (3, 6760496), (4, 5070372), (6, 3380248), (8, 2535186), (12, 1690124), (16, 1267593), (24, 845062), (48, 422531), (521, 38928), (811, 25008), (1042, 19464), (1563, 12976), (1622, 12504), (2084, 9732), (2433, 8336), (3126, 6488), (3244, 6252), (4168, 4866)]