71782840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{105563}}^1$

素因数の和:105591

約数の個数: 32

約数和(自身を含む): 171013680

約数和(自身を除く): 99230840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 105563, 211126, 422252, 527815, 844504, 1055630, 1794571, 2111260, 3589142, 4222520, 7178284, 8972855, 14356568, 17945710, 35891420, 71782840]

約数ペア:

[(1, 71782840), (2, 35891420), (4, 17945710), (5, 14356568), (8, 8972855), (10, 7178284), (17, 4222520), (20, 3589142), (34, 2111260), (40, 1794571), (68, 1055630), (85, 844504), (136, 527815), (170, 422252), (340, 211126), (680, 105563)]