639860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 1524096

約数和(自身を除く): 884236

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 107, 115, 130, 214, 230, 260, 299, 428, 460, 535, 598, 1070, 1196, 1391, 1495, 2140, 2461, 2782, 2990, 4922, 5564, 5980, 6955, 9844, 12305, 13910, 24610, 27820, 31993, 49220, 63986, 127972, 159965, 319930, 639860]

約数ペア:

[(1, 639860), (2, 319930), (4, 159965), (5, 127972), (10, 63986), (13, 49220), (20, 31993), (23, 27820), (26, 24610), (46, 13910), (52, 12305), (65, 9844), (92, 6955), (107, 5980), (115, 5564), (130, 4922), (214, 2990), (230, 2782), (260, 2461), (299, 2140), (428, 1495), (460, 1391), (535, 1196), (598, 1070)]