200989820

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1\times {\mathrm{331}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 429084768

約数和(自身を除く): 228094948

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 313, 331, 388, 485, 626, 662, 970, 1252, 1324, 1565, 1655, 1940, 3130, 3310, 6260, 6620, 30361, 32107, 60722, 64214, 103603, 121444, 128428, 151805, 160535, 207206, 303610, 321070, 414412, 518015, 607220, 642140, 1036030, 2072060, 10049491, 20098982, 40197964, 50247455, 100494910, 200989820]

約数ペア:

[(1, 200989820), (2, 100494910), (4, 50247455), (5, 40197964), (10, 20098982), (20, 10049491), (97, 2072060), (194, 1036030), (313, 642140), (331, 607220), (388, 518015), (485, 414412), (626, 321070), (662, 303610), (970, 207206), (1252, 160535), (1324, 151805), (1565, 128428), (1655, 121444), (1940, 103603), (3130, 64214), (3310, 60722), (6260, 32107), (6620, 30361)]