19951250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{1451}}^1$

素因数の和:1484

約数の個数: 40

約数和(自身を含む): 40824432

約数和(自身を除く): 20873182

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 625, 1250, 1375, 1451, 2750, 2902, 6875, 7255, 13750, 14510, 15961, 31922, 36275, 72550, 79805, 159610, 181375, 362750, 399025, 798050, 906875, 1813750, 1995125, 3990250, 9975625, 19951250]

約数ペア:

[(1, 19951250), (2, 9975625), (5, 3990250), (10, 1995125), (11, 1813750), (22, 906875), (25, 798050), (50, 399025), (55, 362750), (110, 181375), (125, 159610), (250, 79805), (275, 72550), (550, 36275), (625, 31922), (1250, 15961), (1375, 14510), (1451, 13750), (2750, 7255), (2902, 6875)]