19838840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70853}}^1$

素因数の和:70871

約数の個数: 32

約数和(自身を含む): 51014880

約数和(自身を除く): 31176040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70853, 141706, 283412, 354265, 495971, 566824, 708530, 991942, 1417060, 1983884, 2479855, 2834120, 3967768, 4959710, 9919420, 19838840]

約数ペア:

[(1, 19838840), (2, 9919420), (4, 4959710), (5, 3967768), (7, 2834120), (8, 2479855), (10, 1983884), (14, 1417060), (20, 991942), (28, 708530), (35, 566824), (40, 495971), (56, 354265), (70, 283412), (140, 141706), (280, 70853)]