67680940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{809}}^1$

素因数の和:954

約数の個数: 48

約数和(自身を含む): 146966400

約数和(自身を除く): 79285460

約数列:

[1, 2, 4, 5, 10, 20, 47, 89, 94, 178, 188, 235, 356, 445, 470, 809, 890, 940, 1618, 1780, 3236, 4045, 4183, 8090, 8366, 16180, 16732, 20915, 38023, 41830, 72001, 76046, 83660, 144002, 152092, 190115, 288004, 360005, 380230, 720010, 760460, 1440020, 3384047, 6768094, 13536188, 16920235, 33840470, 67680940]

約数ペア:

[(1, 67680940), (2, 33840470), (4, 16920235), (5, 13536188), (10, 6768094), (20, 3384047), (47, 1440020), (89, 760460), (94, 720010), (178, 380230), (188, 360005), (235, 288004), (356, 190115), (445, 152092), (470, 144002), (809, 83660), (890, 76046), (940, 72001), (1618, 41830), (1780, 38023), (3236, 20915), (4045, 16732), (4183, 16180), (8090, 8366)]