19239880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{599}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 47952000

約数和(自身を除く): 28712120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 73, 88, 110, 146, 220, 292, 365, 440, 584, 599, 730, 803, 1198, 1460, 1606, 2396, 2920, 2995, 3212, 4015, 4792, 5990, 6424, 6589, 8030, 11980, 13178, 16060, 23960, 26356, 32120, 32945, 43727, 52712, 65890, 87454, 131780, 174908, 218635, 263560, 349816, 437270, 480997, 874540, 961994, 1749080, 1923988, 2404985, 3847976, 4809970, 9619940, 19239880]

約数ペア:

[(1, 19239880), (2, 9619940), (4, 4809970), (5, 3847976), (8, 2404985), (10, 1923988), (11, 1749080), (20, 961994), (22, 874540), (40, 480997), (44, 437270), (55, 349816), (73, 263560), (88, 218635), (110, 174908), (146, 131780), (220, 87454), (292, 65890), (365, 52712), (440, 43727), (584, 32945), (599, 32120), (730, 26356), (803, 23960), (1198, 16060), (1460, 13178), (1606, 11980), (2396, 8030), (2920, 6589), (2995, 6424), (3212, 5990), (4015, 4792)]