278811230

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1\times {\mathrm{643}}^1$

素因数の和:1112

約数の個数: 32

約数和(自身を含む): 508007808

約数和(自身を除く): 229196578

約数列:

[1, 2, 5, 10, 131, 262, 331, 643, 655, 662, 1286, 1310, 1655, 3215, 3310, 6430, 43361, 84233, 86722, 168466, 212833, 216805, 421165, 425666, 433610, 842330, 1064165, 2128330, 27881123, 55762246, 139405615, 278811230]

約数ペア:

[(1, 278811230), (2, 139405615), (5, 55762246), (10, 27881123), (131, 2128330), (262, 1064165), (331, 842330), (643, 433610), (655, 425666), (662, 421165), (1286, 216805), (1310, 212833), (1655, 168466), (3215, 86722), (3310, 84233), (6430, 43361)]