20970125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:278

約数の個数: 32

約数和(自身を含む): 29023488

約数和(自身を除く): 8053363

約数列:

[1, 5, 11, 25, 55, 101, 125, 151, 275, 505, 755, 1111, 1375, 1661, 2525, 3775, 5555, 8305, 12625, 15251, 18875, 27775, 41525, 76255, 138875, 167761, 207625, 381275, 838805, 1906375, 4194025, 20970125]

約数ペア:

[(1, 20970125), (5, 4194025), (11, 1906375), (25, 838805), (55, 381275), (101, 207625), (125, 167761), (151, 138875), (275, 76255), (505, 41525), (755, 27775), (1111, 18875), (1375, 15251), (1661, 12625), (2525, 8305), (3775, 5555)]