79867640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{5531}}^1$

素因数の和:5580

約数の個数: 48

約数和(自身を含む): 189692280

約数和(自身を除く): 109824640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 5531, 7220, 11062, 14440, 22124, 27655, 44248, 55310, 105089, 110620, 210178, 221240, 420356, 525445, 840712, 1050890, 1996691, 2101780, 3993382, 4203560, 7986764, 9983455, 15973528, 19966910, 39933820, 79867640]

約数ペア:

[(1, 79867640), (2, 39933820), (4, 19966910), (5, 15973528), (8, 9983455), (10, 7986764), (19, 4203560), (20, 3993382), (38, 2101780), (40, 1996691), (76, 1050890), (95, 840712), (152, 525445), (190, 420356), (361, 221240), (380, 210178), (722, 110620), (760, 105089), (1444, 55310), (1805, 44248), (2888, 27655), (3610, 22124), (5531, 14440), (7220, 11062)]