27790280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{99251}}^1$

素因数の和:99269

約数の個数: 32

約数和(自身を含む): 71461440

約数和(自身を除く): 43671160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 99251, 198502, 397004, 496255, 694757, 794008, 992510, 1389514, 1985020, 2779028, 3473785, 3970040, 5558056, 6947570, 13895140, 27790280]

約数ペア:

[(1, 27790280), (2, 13895140), (4, 6947570), (5, 5558056), (7, 3970040), (8, 3473785), (10, 2779028), (14, 1985020), (20, 1389514), (28, 992510), (35, 794008), (40, 694757), (56, 496255), (70, 397004), (140, 198502), (280, 99251)]