8620820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{467}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 19813248

約数和(自身を除く): 11192428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 467, 710, 923, 934, 1420, 1846, 1868, 2335, 3692, 4615, 4670, 6071, 9230, 9340, 12142, 18460, 24284, 30355, 33157, 60710, 66314, 121420, 132628, 165785, 331570, 431041, 663140, 862082, 1724164, 2155205, 4310410, 8620820]

約数ペア:

[(1, 8620820), (2, 4310410), (4, 2155205), (5, 1724164), (10, 862082), (13, 663140), (20, 431041), (26, 331570), (52, 165785), (65, 132628), (71, 121420), (130, 66314), (142, 60710), (260, 33157), (284, 30355), (355, 24284), (467, 18460), (710, 12142), (923, 9340), (934, 9230), (1420, 6071), (1846, 4670), (1868, 4615), (2335, 3692)]