1911250

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{139}}^1$

素因数の和:172

約数の個数: 40

約数和(自身を含む): 3936240

約数和(自身を除く): 2024990

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 139, 250, 275, 278, 550, 625, 695, 1250, 1375, 1390, 1529, 2750, 3058, 3475, 6875, 6950, 7645, 13750, 15290, 17375, 34750, 38225, 76450, 86875, 173750, 191125, 382250, 955625, 1911250]

約数ペア:

[(1, 1911250), (2, 955625), (5, 382250), (10, 191125), (11, 173750), (22, 86875), (25, 76450), (50, 38225), (55, 34750), (110, 17375), (125, 15290), (139, 13750), (250, 7645), (275, 6950), (278, 6875), (550, 3475), (625, 3058), (695, 2750), (1250, 1529), (1375, 1390)]