420090760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{552751}}^1$

素因数の和:552781

約数の個数: 32

約数和(自身を含む): 994953600

約数和(自身を除く): 574862840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 552751, 1105502, 2211004, 2763755, 4422008, 5527510, 10502269, 11055020, 21004538, 22110040, 42009076, 52511345, 84018152, 105022690, 210045380, 420090760]

約数ペア:

[(1, 420090760), (2, 210045380), (4, 105022690), (5, 84018152), (8, 52511345), (10, 42009076), (19, 22110040), (20, 21004538), (38, 11055020), (40, 10502269), (76, 5527510), (95, 4422008), (152, 2763755), (190, 2211004), (380, 1105502), (760, 552751)]