19708434140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1\times {\mathrm{63703}}^1$

素因数の和:64242

約数の個数: 48

約数和(自身を含む): 42809088000

約数和(自身を除く): 23100653860

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 499, 620, 998, 1996, 2495, 4990, 9980, 15469, 30938, 61876, 63703, 77345, 127406, 154690, 254812, 309380, 318515, 637030, 1274060, 1974793, 3949586, 7899172, 9873965, 19747930, 31787797, 39495860, 63575594, 127151188, 158938985, 317877970, 635755940, 985421707, 1970843414, 3941686828, 4927108535, 9854217070, 19708434140]

約数ペア:

[(1, 19708434140), (2, 9854217070), (4, 4927108535), (5, 3941686828), (10, 1970843414), (20, 985421707), (31, 635755940), (62, 317877970), (124, 158938985), (155, 127151188), (310, 63575594), (499, 39495860), (620, 31787797), (998, 19747930), (1996, 9873965), (2495, 7899172), (4990, 3949586), (9980, 1974793), (15469, 1274060), (30938, 637030), (61876, 318515), (63703, 309380), (77345, 254812), (127406, 154690)]