217779990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{16843}}^1$

素因数の和:17284

約数の個数: 32

約数和(自身を含む): 523915776

約数和(自身を除く): 306135786

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 431, 862, 1293, 2155, 2586, 4310, 6465, 12930, 16843, 33686, 50529, 84215, 101058, 168430, 252645, 505290, 7259333, 14518666, 21777999, 36296665, 43555998, 72593330, 108889995, 217779990]

約数ペア:

[(1, 217779990), (2, 108889995), (3, 72593330), (5, 43555998), (6, 36296665), (10, 21777999), (15, 14518666), (30, 7259333), (431, 505290), (862, 252645), (1293, 168430), (2155, 101058), (2586, 84215), (4310, 50529), (6465, 33686), (12930, 16843)]