638757625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:331

約数の個数: 64

約数和(自身を含む): 915183360

約数和(自身を除く): 276425735

約数列:

[1, 5, 11, 25, 29, 55, 83, 125, 145, 193, 275, 319, 415, 725, 913, 965, 1375, 1595, 2075, 2123, 2407, 3625, 4565, 4825, 5597, 7975, 10375, 10615, 12035, 16019, 22825, 24125, 26477, 27985, 39875, 53075, 60175, 61567, 80095, 114125, 132385, 139925, 176209, 265375, 300875, 307835, 400475, 464551, 661925, 699625, 881045, 1539175, 2002375, 2322755, 3309625, 4405225, 5110061, 7695875, 11613775, 22026125, 25550305, 58068875, 127751525, 638757625]

約数ペア:

[(1, 638757625), (5, 127751525), (11, 58068875), (25, 25550305), (29, 22026125), (55, 11613775), (83, 7695875), (125, 5110061), (145, 4405225), (193, 3309625), (275, 2322755), (319, 2002375), (415, 1539175), (725, 881045), (913, 699625), (965, 661925), (1375, 464551), (1595, 400475), (2075, 307835), (2123, 300875), (2407, 265375), (3625, 176209), (4565, 139925), (4825, 132385), (5597, 114125), (7975, 80095), (10375, 61567), (10615, 60175), (12035, 53075), (16019, 39875), (22825, 27985), (24125, 26477)]