212320720

素因数分解:

$2^4\times 5^1\times {\mathrm{1373}}^1\times {\mathrm{1933}}^1$

素因数の和:3319

約数の個数: 40

約数和(自身を含む): 494260776

約数和(自身を除く): 281940056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1373, 1933, 2746, 3866, 5492, 6865, 7732, 9665, 10984, 13730, 15464, 19330, 21968, 27460, 30928, 38660, 54920, 77320, 109840, 154640, 2654009, 5308018, 10616036, 13270045, 21232072, 26540090, 42464144, 53080180, 106160360, 212320720]

約数ペア:

[(1, 212320720), (2, 106160360), (4, 53080180), (5, 42464144), (8, 26540090), (10, 21232072), (16, 13270045), (20, 10616036), (40, 5308018), (80, 2654009), (1373, 154640), (1933, 109840), (2746, 77320), (3866, 54920), (5492, 38660), (6865, 30928), (7732, 27460), (9665, 21968), (10984, 19330), (13730, 15464)]