28520895

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 52093440

約数和(自身を除く): 23572545

約数列:

[1, 3, 5, 13, 15, 37, 39, 59, 65, 67, 111, 177, 185, 195, 201, 295, 335, 481, 555, 767, 871, 885, 1005, 1443, 2183, 2301, 2405, 2479, 2613, 3835, 3953, 4355, 6549, 7215, 7437, 10915, 11505, 11859, 12395, 13065, 19765, 28379, 32227, 32745, 37185, 51389, 59295, 85137, 96681, 141895, 146261, 154167, 161135, 256945, 425685, 438783, 483405, 731305, 770835, 1901393, 2193915, 5704179, 9506965, 28520895]

約数ペア:

[(1, 28520895), (3, 9506965), (5, 5704179), (13, 2193915), (15, 1901393), (37, 770835), (39, 731305), (59, 483405), (65, 438783), (67, 425685), (111, 256945), (177, 161135), (185, 154167), (195, 146261), (201, 141895), (295, 96681), (335, 85137), (481, 59295), (555, 51389), (767, 37185), (871, 32745), (885, 32227), (1005, 28379), (1443, 19765), (2183, 13065), (2301, 12395), (2405, 11859), (2479, 11505), (2613, 10915), (3835, 7437), (3953, 7215), (4355, 6549)]