20103650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:899

約数の個数: 48

約数和(自身を含む): 43390080

約数和(自身を除く): 23286430

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 71, 142, 175, 350, 355, 497, 710, 809, 994, 1618, 1775, 2485, 3550, 4045, 4970, 5663, 8090, 11326, 12425, 20225, 24850, 28315, 40450, 56630, 57439, 114878, 141575, 283150, 287195, 402073, 574390, 804146, 1435975, 2010365, 2871950, 4020730, 10051825, 20103650]

約数ペア:

[(1, 20103650), (2, 10051825), (5, 4020730), (7, 2871950), (10, 2010365), (14, 1435975), (25, 804146), (35, 574390), (50, 402073), (70, 287195), (71, 283150), (142, 141575), (175, 114878), (350, 57439), (355, 56630), (497, 40450), (710, 28315), (809, 24850), (994, 20225), (1618, 12425), (1775, 11326), (2485, 8090), (3550, 5663), (4045, 4970)]