643347952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{8161}}^1$

素因数の和:8561

約数の個数: 40

約数和(自身を含む): 1346077040

約数和(自身を除く): 702729088

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 379, 758, 1516, 3032, 4927, 6064, 8161, 9854, 16322, 19708, 32644, 39416, 65288, 78832, 106093, 130576, 212186, 424372, 848744, 1697488, 3093019, 6186038, 12372076, 24744152, 40209247, 49488304, 80418494, 160836988, 321673976, 643347952]

約数ペア:

[(1, 643347952), (2, 321673976), (4, 160836988), (8, 80418494), (13, 49488304), (16, 40209247), (26, 24744152), (52, 12372076), (104, 6186038), (208, 3093019), (379, 1697488), (758, 848744), (1516, 424372), (3032, 212186), (4927, 130576), (6064, 106093), (8161, 78832), (9854, 65288), (16322, 39416), (19708, 32644)]