408065090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2389}}^1$

素因数の和:2475

約数の個数: 64

約数和(自身を含む): 825984000

約数和(自身を除く): 417918910

約数列:

[1, 2, 5, 10, 19, 29, 31, 38, 58, 62, 95, 145, 155, 190, 290, 310, 551, 589, 899, 1102, 1178, 1798, 2389, 2755, 2945, 4495, 4778, 5510, 5890, 8990, 11945, 17081, 23890, 34162, 45391, 69281, 74059, 85405, 90782, 138562, 148118, 170810, 226955, 346405, 370295, 453910, 692810, 740590, 1316339, 1407121, 2147711, 2632678, 2814242, 4295422, 6581695, 7035605, 10738555, 13163390, 14071210, 21477110, 40806509, 81613018, 204032545, 408065090]

約数ペア:

[(1, 408065090), (2, 204032545), (5, 81613018), (10, 40806509), (19, 21477110), (29, 14071210), (31, 13163390), (38, 10738555), (58, 7035605), (62, 6581695), (95, 4295422), (145, 2814242), (155, 2632678), (190, 2147711), (290, 1407121), (310, 1316339), (551, 740590), (589, 692810), (899, 453910), (1102, 370295), (1178, 346405), (1798, 226955), (2389, 170810), (2755, 148118), (2945, 138562), (4495, 90782), (4778, 85405), (5510, 74059), (5890, 69281), (8990, 45391), (11945, 34162), (17081, 23890)]