278328219

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1\times {\mathrm{479}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 410296320

約数和(自身を除く): 131968101

約数列:

[1, 3, 13, 39, 47, 141, 317, 479, 611, 951, 1437, 1833, 4121, 6227, 12363, 14899, 18681, 22513, 44697, 67539, 151843, 193687, 292669, 455529, 581061, 878007, 1973959, 5921877, 7136621, 21409863, 92776073, 278328219]

約数ペア:

[(1, 278328219), (3, 92776073), (13, 21409863), (39, 7136621), (47, 5921877), (141, 1973959), (317, 878007), (479, 581061), (611, 455529), (951, 292669), (1437, 193687), (1833, 151843), (4121, 67539), (6227, 44697), (12363, 22513), (14899, 18681)]