19601390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{263}}^1$

素因数の和:556

約数の個数: 32

約数和(自身を含む): 36780480

約数和(自身を除く): 17179090

約数列:

[1, 2, 5, 10, 29, 58, 145, 257, 263, 290, 514, 526, 1285, 1315, 2570, 2630, 7453, 7627, 14906, 15254, 37265, 38135, 67591, 74530, 76270, 135182, 337955, 675910, 1960139, 3920278, 9800695, 19601390]

約数ペア:

[(1, 19601390), (2, 9800695), (5, 3920278), (10, 1960139), (29, 675910), (58, 337955), (145, 135182), (257, 76270), (263, 74530), (290, 67591), (514, 38135), (526, 37265), (1285, 15254), (1315, 14906), (2570, 7627), (2630, 7453)]