20737750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7541}}^1$

素因数の和:7569

約数の個数: 32

約数和(自身を含む): 42355872

約数和(自身を除く): 21618122

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7541, 15082, 37705, 75410, 82951, 165902, 188525, 377050, 414755, 829510, 942625, 1885250, 2073775, 4147550, 10368875, 20737750]

約数ペア:

[(1, 20737750), (2, 10368875), (5, 4147550), (10, 2073775), (11, 1885250), (22, 942625), (25, 829510), (50, 414755), (55, 377050), (110, 188525), (125, 165902), (250, 82951), (275, 75410), (550, 37705), (1375, 15082), (2750, 7541)]