889184420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{997}}^1\times {\mathrm{2347}}^1$

素因数の和:3372

約数の個数: 48

約数和(自身を含む): 1968375360

約数和(自身を除く): 1079190940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 997, 1994, 2347, 3988, 4694, 4985, 9388, 9970, 11735, 18943, 19940, 23470, 37886, 44593, 46940, 75772, 89186, 94715, 178372, 189430, 222965, 378860, 445930, 891860, 2339959, 4679918, 9359836, 11699795, 23399590, 44459221, 46799180, 88918442, 177836884, 222296105, 444592210, 889184420]

約数ペア:

[(1, 889184420), (2, 444592210), (4, 222296105), (5, 177836884), (10, 88918442), (19, 46799180), (20, 44459221), (38, 23399590), (76, 11699795), (95, 9359836), (190, 4679918), (380, 2339959), (997, 891860), (1994, 445930), (2347, 378860), (3988, 222965), (4694, 189430), (4985, 178372), (9388, 94715), (9970, 89186), (11735, 75772), (18943, 46940), (19940, 44593), (23470, 37886)]