19916620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1493}}^1$

素因数の和:1554

約数の個数: 48

約数和(自身を含む): 45178560

約数和(自身を除く): 25261940

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 46, 58, 92, 115, 116, 145, 230, 290, 460, 580, 667, 1334, 1493, 2668, 2986, 3335, 5972, 6670, 7465, 13340, 14930, 29860, 34339, 43297, 68678, 86594, 137356, 171695, 173188, 216485, 343390, 432970, 686780, 865940, 995831, 1991662, 3983324, 4979155, 9958310, 19916620]

約数ペア:

[(1, 19916620), (2, 9958310), (4, 4979155), (5, 3983324), (10, 1991662), (20, 995831), (23, 865940), (29, 686780), (46, 432970), (58, 343390), (92, 216485), (115, 173188), (116, 171695), (145, 137356), (230, 86594), (290, 68678), (460, 43297), (580, 34339), (667, 29860), (1334, 14930), (1493, 13340), (2668, 7465), (2986, 6670), (3335, 5972)]