821000890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{15731}}^1$

素因数の和:16062

約数の個数: 32

約数和(自身を含む): 1569927744

約数和(自身を除く): 748926854

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 307, 614, 1535, 3070, 5219, 10438, 15731, 26095, 31462, 52190, 78655, 157310, 267427, 534854, 1337135, 2674270, 4829417, 9658834, 24147085, 48294170, 82100089, 164200178, 410500445, 821000890]

約数ペア:

[(1, 821000890), (2, 410500445), (5, 164200178), (10, 82100089), (17, 48294170), (34, 24147085), (85, 9658834), (170, 4829417), (307, 2674270), (614, 1337135), (1535, 534854), (3070, 267427), (5219, 157310), (10438, 78655), (15731, 52190), (26095, 31462)]