311155245

素因数分解:

$3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1\times {\mathrm{307}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 548900352

約数和(自身を除く): 237745107

約数列:

[1, 3, 5, 9, 15, 45, 101, 223, 303, 307, 505, 669, 909, 921, 1115, 1515, 1535, 2007, 2763, 3345, 4545, 4605, 10035, 13815, 22523, 31007, 67569, 68461, 93021, 112615, 155035, 202707, 205383, 279063, 337845, 342305, 465105, 616149, 1013535, 1026915, 1395315, 3080745, 6914561, 20743683, 34572805, 62231049, 103718415, 311155245]

約数ペア:

[(1, 311155245), (3, 103718415), (5, 62231049), (9, 34572805), (15, 20743683), (45, 6914561), (101, 3080745), (223, 1395315), (303, 1026915), (307, 1013535), (505, 616149), (669, 465105), (909, 342305), (921, 337845), (1115, 279063), (1515, 205383), (1535, 202707), (2007, 155035), (2763, 112615), (3345, 93021), (4545, 68461), (4605, 67569), (10035, 31007), (13815, 22523)]