42090405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 81051648

約数和(自身を除く): 38961243

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 67, 93, 105, 155, 193, 201, 217, 335, 465, 469, 579, 651, 965, 1005, 1085, 1351, 1407, 2077, 2345, 2895, 3255, 4053, 5983, 6231, 6755, 7035, 10385, 12931, 14539, 17949, 20265, 29915, 31155, 38793, 41881, 43617, 64655, 72695, 89745, 90517, 125643, 193965, 209405, 218085, 271551, 400861, 452585, 628215, 1202583, 1357755, 2004305, 2806027, 6012915, 8418081, 14030135, 42090405]

約数ペア:

[(1, 42090405), (3, 14030135), (5, 8418081), (7, 6012915), (15, 2806027), (21, 2004305), (31, 1357755), (35, 1202583), (67, 628215), (93, 452585), (105, 400861), (155, 271551), (193, 218085), (201, 209405), (217, 193965), (335, 125643), (465, 90517), (469, 89745), (579, 72695), (651, 64655), (965, 43617), (1005, 41881), (1085, 38793), (1351, 31155), (1407, 29915), (2077, 20265), (2345, 17949), (2895, 14539), (3255, 12931), (4053, 10385), (5983, 7035), (6231, 6755)]