19320225

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 33581184

約数和(自身を除く): 14260959

約数列:

[1, 3, 5, 15, 25, 41, 61, 75, 103, 123, 183, 205, 305, 309, 515, 615, 915, 1025, 1525, 1545, 2501, 2575, 3075, 4223, 4575, 6283, 7503, 7725, 12505, 12669, 18849, 21115, 31415, 37515, 62525, 63345, 94245, 105575, 157075, 187575, 257603, 316725, 471225, 772809, 1288015, 3864045, 6440075, 19320225]

約数ペア:

[(1, 19320225), (3, 6440075), (5, 3864045), (15, 1288015), (25, 772809), (41, 471225), (61, 316725), (75, 257603), (103, 187575), (123, 157075), (183, 105575), (205, 94245), (305, 63345), (309, 62525), (515, 37515), (615, 31415), (915, 21115), (1025, 18849), (1525, 12669), (1545, 12505), (2501, 7725), (2575, 7503), (3075, 6283), (4223, 4575)]