18724750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{619}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 38591280

約数和(自身を除く): 19866530

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 125, 242, 250, 275, 550, 605, 619, 1210, 1238, 1375, 2750, 3025, 3095, 6050, 6190, 6809, 13618, 15125, 15475, 30250, 30950, 34045, 68090, 74899, 77375, 149798, 154750, 170225, 340450, 374495, 748990, 851125, 1702250, 1872475, 3744950, 9362375, 18724750]

約数ペア:

[(1, 18724750), (2, 9362375), (5, 3744950), (10, 1872475), (11, 1702250), (22, 851125), (25, 748990), (50, 374495), (55, 340450), (110, 170225), (121, 154750), (125, 149798), (242, 77375), (250, 74899), (275, 68090), (550, 34045), (605, 30950), (619, 30250), (1210, 15475), (1238, 15125), (1375, 13618), (2750, 6809), (3025, 6190), (3095, 6050)]