8407120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5531}}^1$

素因数の和:5563

約数の個数: 40

約数和(自身を含む): 20579040

約数和(自身を除く): 12171920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 5531, 11062, 22124, 27655, 44248, 55310, 88496, 105089, 110620, 210178, 221240, 420356, 442480, 525445, 840712, 1050890, 1681424, 2101780, 4203560, 8407120]

約数ペア:

[(1, 8407120), (2, 4203560), (4, 2101780), (5, 1681424), (8, 1050890), (10, 840712), (16, 525445), (19, 442480), (20, 420356), (38, 221240), (40, 210178), (76, 110620), (80, 105089), (95, 88496), (152, 55310), (190, 44248), (304, 27655), (380, 22124), (760, 11062), (1520, 5531)]