81286020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{467}}^1\times {\mathrm{967}}^1$

素因数の和:1449

約数の個数: 72

約数和(自身を含む): 247351104

約数和(自身を除く): 166065084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 467, 934, 967, 1401, 1868, 1934, 2335, 2802, 2901, 3868, 4203, 4670, 4835, 5604, 5802, 7005, 8406, 8703, 9340, 9670, 11604, 14010, 14505, 16812, 17406, 19340, 21015, 28020, 29010, 34812, 42030, 43515, 58020, 84060, 87030, 174060, 451589, 903178, 1354767, 1806356, 2257945, 2709534, 4064301, 4515890, 5419068, 6773835, 8128602, 9031780, 13547670, 16257204, 20321505, 27095340, 40643010, 81286020]

約数ペア:

[(1, 81286020), (2, 40643010), (3, 27095340), (4, 20321505), (5, 16257204), (6, 13547670), (9, 9031780), (10, 8128602), (12, 6773835), (15, 5419068), (18, 4515890), (20, 4064301), (30, 2709534), (36, 2257945), (45, 1806356), (60, 1354767), (90, 903178), (180, 451589), (467, 174060), (934, 87030), (967, 84060), (1401, 58020), (1868, 43515), (1934, 42030), (2335, 34812), (2802, 29010), (2901, 28020), (3868, 21015), (4203, 19340), (4670, 17406), (4835, 16812), (5604, 14505), (5802, 14010), (7005, 11604), (8406, 9670), (8703, 9340)]