1618795940

素因数分解:

$2^2\times 5^1\times {\mathrm{12907}}^1\times {\mathrm{6271}}^1$

素因数の和:19187

約数の個数: 24

約数和(自身を含む): 3400276992

約数和(自身を除く): 1781481052

約数列:

[1, 2, 4, 5, 10, 20, 6271, 12542, 12907, 25084, 25814, 31355, 51628, 62710, 64535, 125420, 129070, 258140, 80939797, 161879594, 323759188, 404698985, 809397970, 1618795940]

約数ペア:

[(1, 1618795940), (2, 809397970), (4, 404698985), (5, 323759188), (10, 161879594), (20, 80939797), (6271, 258140), (12542, 129070), (12907, 125420), (25084, 64535), (25814, 62710), (31355, 51628)]