20322500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{739}}^1$

素因数の和:774

約数の個数: 60

約数和(自身を含む): 48546960

約数和(自身を除く): 28224460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 625, 739, 1100, 1250, 1375, 1478, 2500, 2750, 2956, 3695, 5500, 6875, 7390, 8129, 13750, 14780, 16258, 18475, 27500, 32516, 36950, 40645, 73900, 81290, 92375, 162580, 184750, 203225, 369500, 406450, 461875, 812900, 923750, 1016125, 1847500, 2032250, 4064500, 5080625, 10161250, 20322500]

約数ペア:

[(1, 20322500), (2, 10161250), (4, 5080625), (5, 4064500), (10, 2032250), (11, 1847500), (20, 1016125), (22, 923750), (25, 812900), (44, 461875), (50, 406450), (55, 369500), (100, 203225), (110, 184750), (125, 162580), (220, 92375), (250, 81290), (275, 73900), (500, 40645), (550, 36950), (625, 32516), (739, 27500), (1100, 18475), (1250, 16258), (1375, 14780), (1478, 13750), (2500, 8129), (2750, 7390), (2956, 6875), (3695, 5500)]