315721520

素因数分解:

$2^4\times 5^1\times {\mathrm{1913}}^1\times {\mathrm{2063}}^1$

素因数の和:3989

約数の個数: 40

約数和(自身を含む): 734792256

約数和(自身を除く): 419070736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1913, 2063, 3826, 4126, 7652, 8252, 9565, 10315, 15304, 16504, 19130, 20630, 30608, 33008, 38260, 41260, 76520, 82520, 153040, 165040, 3946519, 7893038, 15786076, 19732595, 31572152, 39465190, 63144304, 78930380, 157860760, 315721520]

約数ペア:

[(1, 315721520), (2, 157860760), (4, 78930380), (5, 63144304), (8, 39465190), (10, 31572152), (16, 19732595), (20, 15786076), (40, 7893038), (80, 3946519), (1913, 165040), (2063, 153040), (3826, 82520), (4126, 76520), (7652, 41260), (8252, 38260), (9565, 33008), (10315, 30608), (15304, 20630), (16504, 19130)]