19936660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{593}}^1$

素因数の和:684

約数の個数: 36

約数和(自身を含む): 42985404

約数和(自身を除く): 23048744

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 593, 820, 1186, 1681, 2372, 2965, 3362, 5930, 6724, 8405, 11860, 16810, 24313, 33620, 48626, 97252, 121565, 243130, 486260, 996833, 1993666, 3987332, 4984165, 9968330, 19936660]

約数ペア:

[(1, 19936660), (2, 9968330), (4, 4984165), (5, 3987332), (10, 1993666), (20, 996833), (41, 486260), (82, 243130), (164, 121565), (205, 97252), (410, 48626), (593, 33620), (820, 24313), (1186, 16810), (1681, 11860), (2372, 8405), (2965, 6724), (3362, 5930)]