79772740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 185391360

約数和(自身を除く): 105618620

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 43, 46, 74, 86, 92, 109, 115, 148, 172, 185, 215, 218, 230, 370, 430, 436, 460, 545, 740, 851, 860, 989, 1090, 1591, 1702, 1978, 2180, 2507, 3182, 3404, 3956, 4033, 4255, 4687, 4945, 5014, 6364, 7955, 8066, 8510, 9374, 9890, 10028, 12535, 15910, 16132, 17020, 18748, 19780, 20165, 23435, 25070, 31820, 36593, 40330, 46870, 50140, 73186, 80660, 92759, 93740, 107801, 146372, 173419, 182965, 185518, 215602, 346838, 365930, 371036, 431204, 463795, 539005, 693676, 731860, 867095, 927590, 1078010, 1734190, 1855180, 2156020, 3468380, 3988637, 7977274, 15954548, 19943185, 39886370, 79772740]

約数ペア:

[(1, 79772740), (2, 39886370), (4, 19943185), (5, 15954548), (10, 7977274), (20, 3988637), (23, 3468380), (37, 2156020), (43, 1855180), (46, 1734190), (74, 1078010), (86, 927590), (92, 867095), (109, 731860), (115, 693676), (148, 539005), (172, 463795), (185, 431204), (215, 371036), (218, 365930), (230, 346838), (370, 215602), (430, 185518), (436, 182965), (460, 173419), (545, 146372), (740, 107801), (851, 93740), (860, 92759), (989, 80660), (1090, 73186), (1591, 50140), (1702, 46870), (1978, 40330), (2180, 36593), (2507, 31820), (3182, 25070), (3404, 23435), (3956, 20165), (4033, 19780), (4255, 18748), (4687, 17020), (4945, 16132), (5014, 15910), (6364, 12535), (7955, 10028), (8066, 9890), (8510, 9374)]