20934920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16883}}^1$

素因数の和:16925

約数の個数: 32

約数和(自身を含む): 48625920

約数和(自身を除く): 27691000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16883, 33766, 67532, 84415, 135064, 168830, 337660, 523373, 675320, 1046746, 2093492, 2616865, 4186984, 5233730, 10467460, 20934920]

約数ペア:

[(1, 20934920), (2, 10467460), (4, 5233730), (5, 4186984), (8, 2616865), (10, 2093492), (20, 1046746), (31, 675320), (40, 523373), (62, 337660), (124, 168830), (155, 135064), (248, 84415), (310, 67532), (620, 33766), (1240, 16883)]