20158902640

素因数分解:

$2^4\times 5^1\times {\mathrm{947}}^1\times {\mathrm{266089}}^1$

素因数の和:267049

約数の個数: 40

約数和(自身を含む): 46919117520

約数和(自身を除く): 26760214880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 947, 1894, 3788, 4735, 7576, 9470, 15152, 18940, 37880, 75760, 266089, 532178, 1064356, 1330445, 2128712, 2660890, 4257424, 5321780, 10643560, 21287120, 251986283, 503972566, 1007945132, 1259931415, 2015890264, 2519862830, 4031780528, 5039725660, 10079451320, 20158902640]

約数ペア:

[(1, 20158902640), (2, 10079451320), (4, 5039725660), (5, 4031780528), (8, 2519862830), (10, 2015890264), (16, 1259931415), (20, 1007945132), (40, 503972566), (80, 251986283), (947, 21287120), (1894, 10643560), (3788, 5321780), (4735, 4257424), (7576, 2660890), (9470, 2128712), (15152, 1330445), (18940, 1064356), (37880, 532178), (75760, 266089)]