131706180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1789}}^1$

素因数の和:2213

約数の個数: 72

約数和(自身を含む): 400709400

約数和(自身を除く): 269003220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 409, 818, 1227, 1636, 1789, 2045, 2454, 3578, 3681, 4090, 4908, 5367, 6135, 7156, 7362, 8180, 8945, 10734, 12270, 14724, 16101, 17890, 18405, 21468, 24540, 26835, 32202, 35780, 36810, 53670, 64404, 73620, 80505, 107340, 161010, 322020, 731701, 1463402, 2195103, 2926804, 3658505, 4390206, 6585309, 7317010, 8780412, 10975515, 13170618, 14634020, 21951030, 26341236, 32926545, 43902060, 65853090, 131706180]

約数ペア:

[(1, 131706180), (2, 65853090), (3, 43902060), (4, 32926545), (5, 26341236), (6, 21951030), (9, 14634020), (10, 13170618), (12, 10975515), (15, 8780412), (18, 7317010), (20, 6585309), (30, 4390206), (36, 3658505), (45, 2926804), (60, 2195103), (90, 1463402), (180, 731701), (409, 322020), (818, 161010), (1227, 107340), (1636, 80505), (1789, 73620), (2045, 64404), (2454, 53670), (3578, 36810), (3681, 35780), (4090, 32202), (4908, 26835), (5367, 24540), (6135, 21468), (7156, 18405), (7362, 17890), (8180, 16101), (8945, 14724), (10734, 12270)]