20652500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{751}}^1$

素因数の和:786

約数の個数: 60

約数和(自身を含む): 49334208

約数和(自身を除く): 28681708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 625, 751, 1100, 1250, 1375, 1502, 2500, 2750, 3004, 3755, 5500, 6875, 7510, 8261, 13750, 15020, 16522, 18775, 27500, 33044, 37550, 41305, 75100, 82610, 93875, 165220, 187750, 206525, 375500, 413050, 469375, 826100, 938750, 1032625, 1877500, 2065250, 4130500, 5163125, 10326250, 20652500]

約数ペア:

[(1, 20652500), (2, 10326250), (4, 5163125), (5, 4130500), (10, 2065250), (11, 1877500), (20, 1032625), (22, 938750), (25, 826100), (44, 469375), (50, 413050), (55, 375500), (100, 206525), (110, 187750), (125, 165220), (220, 93875), (250, 82610), (275, 75100), (500, 41305), (550, 37550), (625, 33044), (751, 27500), (1100, 18775), (1250, 16522), (1375, 15020), (1502, 13750), (2500, 8261), (2750, 7510), (3004, 6875), (3755, 5500)]