72187640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{911}}^1$

素因数の和:1212

約数の個数: 64

約数和(自身を含む): 186485760

約数和(自身を除く): 114298120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 283, 566, 911, 1132, 1415, 1822, 1981, 2264, 2830, 3644, 3962, 4555, 5660, 6377, 7288, 7924, 9110, 9905, 11320, 12754, 15848, 18220, 19810, 25508, 31885, 36440, 39620, 51016, 63770, 79240, 127540, 255080, 257813, 515626, 1031252, 1289065, 1804691, 2062504, 2578130, 3609382, 5156260, 7218764, 9023455, 10312520, 14437528, 18046910, 36093820, 72187640]

約数ペア:

[(1, 72187640), (2, 36093820), (4, 18046910), (5, 14437528), (7, 10312520), (8, 9023455), (10, 7218764), (14, 5156260), (20, 3609382), (28, 2578130), (35, 2062504), (40, 1804691), (56, 1289065), (70, 1031252), (140, 515626), (280, 257813), (283, 255080), (566, 127540), (911, 79240), (1132, 63770), (1415, 51016), (1822, 39620), (1981, 36440), (2264, 31885), (2830, 25508), (3644, 19810), (3962, 18220), (4555, 15848), (5660, 12754), (6377, 11320), (7288, 9905), (7924, 9110)]