278405296

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43177}}^1$

素因数の和:43229

約数の個数: 40

約数和(自身を含む): 599656064

約数和(自身を除く): 321250768

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 43177, 86354, 172708, 345416, 561301, 690832, 1122602, 1338487, 2245204, 2676974, 4490408, 5353948, 8980816, 10707896, 17400331, 21415792, 34800662, 69601324, 139202648, 278405296]

約数ペア:

[(1, 278405296), (2, 139202648), (4, 69601324), (8, 34800662), (13, 21415792), (16, 17400331), (26, 10707896), (31, 8980816), (52, 5353948), (62, 4490408), (104, 2676974), (124, 2245204), (208, 1338487), (248, 1122602), (403, 690832), (496, 561301), (806, 345416), (1612, 172708), (3224, 86354), (6448, 43177)]