19897660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{479}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 43868160

約数和(自身を除く): 23970500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 310, 335, 479, 620, 670, 958, 1340, 1916, 2077, 2395, 4154, 4790, 8308, 9580, 10385, 14849, 20770, 29698, 32093, 41540, 59396, 64186, 74245, 128372, 148490, 160465, 296980, 320930, 641860, 994883, 1989766, 3979532, 4974415, 9948830, 19897660]

約数ペア:

[(1, 19897660), (2, 9948830), (4, 4974415), (5, 3979532), (10, 1989766), (20, 994883), (31, 641860), (62, 320930), (67, 296980), (124, 160465), (134, 148490), (155, 128372), (268, 74245), (310, 64186), (335, 59396), (479, 41540), (620, 32093), (670, 29698), (958, 20770), (1340, 14849), (1916, 10385), (2077, 9580), (2395, 8308), (4154, 4790)]