85117860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{971}}^1$

素因数の和:1473

約数の個数: 72

約数和(自身を含む): 258987456

約数和(自身を除く): 173869596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 487, 971, 974, 1461, 1942, 1948, 2435, 2913, 2922, 3884, 4383, 4855, 4870, 5826, 5844, 7305, 8739, 8766, 9710, 9740, 11652, 14565, 14610, 17478, 17532, 19420, 21915, 29130, 29220, 34956, 43695, 43830, 58260, 87390, 87660, 174780, 472877, 945754, 1418631, 1891508, 2364385, 2837262, 4255893, 4728770, 5674524, 7093155, 8511786, 9457540, 14186310, 17023572, 21279465, 28372620, 42558930, 85117860]

約数ペア:

[(1, 85117860), (2, 42558930), (3, 28372620), (4, 21279465), (5, 17023572), (6, 14186310), (9, 9457540), (10, 8511786), (12, 7093155), (15, 5674524), (18, 4728770), (20, 4255893), (30, 2837262), (36, 2364385), (45, 1891508), (60, 1418631), (90, 945754), (180, 472877), (487, 174780), (971, 87660), (974, 87390), (1461, 58260), (1942, 43830), (1948, 43695), (2435, 34956), (2913, 29220), (2922, 29130), (3884, 21915), (4383, 19420), (4855, 17532), (4870, 17478), (5826, 14610), (5844, 14565), (7305, 11652), (8739, 9740), (8766, 9710)]