28411305

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{397}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 49211904

約数和(自身を除く): 20800599

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 367, 397, 1101, 1191, 1835, 1985, 4771, 5161, 5505, 5955, 14313, 15483, 23855, 25805, 71565, 77415, 145699, 437097, 728495, 1894087, 2185485, 5682261, 9470435, 28411305]

約数ペア:

[(1, 28411305), (3, 9470435), (5, 5682261), (13, 2185485), (15, 1894087), (39, 728495), (65, 437097), (195, 145699), (367, 77415), (397, 71565), (1101, 25805), (1191, 23855), (1835, 15483), (1985, 14313), (4771, 5955), (5161, 5505)]