71640225

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{10271}}^1$

素因数の和:10318

約数の個数: 36

約数和(自身を含む): 132467712

約数和(自身を除く): 60827487

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 225, 279, 465, 775, 1395, 2325, 6975, 10271, 30813, 51355, 92439, 154065, 256775, 318401, 462195, 770325, 955203, 1592005, 2310975, 2865609, 4776015, 7960025, 14328045, 23880075, 71640225]

約数ペア:

[(1, 71640225), (3, 23880075), (5, 14328045), (9, 7960025), (15, 4776015), (25, 2865609), (31, 2310975), (45, 1592005), (75, 955203), (93, 770325), (155, 462195), (225, 318401), (279, 256775), (465, 154065), (775, 92439), (1395, 51355), (2325, 30813), (6975, 10271)]