20789175

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{223}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 37997568

約数和(自身を除く): 17208393

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 113, 165, 223, 275, 339, 565, 669, 825, 1115, 1243, 1695, 2453, 2825, 3345, 3729, 5575, 6215, 7359, 8475, 12265, 16725, 18645, 25199, 31075, 36795, 61325, 75597, 93225, 125995, 183975, 277189, 377985, 629975, 831567, 1385945, 1889925, 4157835, 6929725, 20789175]

約数ペア:

[(1, 20789175), (3, 6929725), (5, 4157835), (11, 1889925), (15, 1385945), (25, 831567), (33, 629975), (55, 377985), (75, 277189), (113, 183975), (165, 125995), (223, 93225), (275, 75597), (339, 61325), (565, 36795), (669, 31075), (825, 25199), (1115, 18645), (1243, 16725), (1695, 12265), (2453, 8475), (2825, 7359), (3345, 6215), (3729, 5575)]