20170840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29663}}^1$

素因数の和:29691

約数の個数: 32

約数和(自身を含む): 48055680

約数和(自身を除く): 27884840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 29663, 59326, 118652, 148315, 237304, 296630, 504271, 593260, 1008542, 1186520, 2017084, 2521355, 4034168, 5042710, 10085420, 20170840]

約数ペア:

[(1, 20170840), (2, 10085420), (4, 5042710), (5, 4034168), (8, 2521355), (10, 2017084), (17, 1186520), (20, 1008542), (34, 593260), (40, 504271), (68, 296630), (85, 237304), (136, 148315), (170, 118652), (340, 59326), (680, 29663)]