20479250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{677}}^1$

素因数の和:716

約数の個数: 48

約数和(自身を含む): 42201432

約数和(自身を除く): 21722182

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 125, 242, 250, 275, 550, 605, 677, 1210, 1354, 1375, 2750, 3025, 3385, 6050, 6770, 7447, 14894, 15125, 16925, 30250, 33850, 37235, 74470, 81917, 84625, 163834, 169250, 186175, 372350, 409585, 819170, 930875, 1861750, 2047925, 4095850, 10239625, 20479250]

約数ペア:

[(1, 20479250), (2, 10239625), (5, 4095850), (10, 2047925), (11, 1861750), (22, 930875), (25, 819170), (50, 409585), (55, 372350), (110, 186175), (121, 169250), (125, 163834), (242, 84625), (250, 81917), (275, 74470), (550, 37235), (605, 33850), (677, 30250), (1210, 16925), (1354, 15125), (1375, 14894), (2750, 7447), (3025, 6770), (3385, 6050)]