61259720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 143769600

約数和(自身を除く): 82509880

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 248, 254, 310, 389, 508, 620, 635, 778, 1016, 1240, 1270, 1556, 1945, 2540, 3112, 3890, 3937, 5080, 7780, 7874, 12059, 15560, 15748, 19685, 24118, 31496, 39370, 48236, 49403, 60295, 78740, 96472, 98806, 120590, 157480, 197612, 241180, 247015, 395224, 482360, 494030, 988060, 1531493, 1976120, 3062986, 6125972, 7657465, 12251944, 15314930, 30629860, 61259720]

約数ペア:

[(1, 61259720), (2, 30629860), (4, 15314930), (5, 12251944), (8, 7657465), (10, 6125972), (20, 3062986), (31, 1976120), (40, 1531493), (62, 988060), (124, 494030), (127, 482360), (155, 395224), (248, 247015), (254, 241180), (310, 197612), (389, 157480), (508, 120590), (620, 98806), (635, 96472), (778, 78740), (1016, 60295), (1240, 49403), (1270, 48236), (1556, 39370), (1945, 31496), (2540, 24118), (3112, 19685), (3890, 15748), (3937, 15560), (5080, 12059), (7780, 7874)]