28621775

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{547}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 45663744

約数和(自身を除く): 17041969

約数列:

[1, 5, 7, 13, 23, 25, 35, 65, 91, 115, 161, 175, 299, 325, 455, 547, 575, 805, 1495, 2093, 2275, 2735, 3829, 4025, 7111, 7475, 10465, 12581, 13675, 19145, 35555, 49777, 52325, 62905, 88067, 95725, 163553, 177775, 248885, 314525, 440335, 817765, 1144871, 1244425, 2201675, 4088825, 5724355, 28621775]

約数ペア:

[(1, 28621775), (5, 5724355), (7, 4088825), (13, 2201675), (23, 1244425), (25, 1144871), (35, 817765), (65, 440335), (91, 314525), (115, 248885), (161, 177775), (175, 163553), (299, 95725), (325, 88067), (455, 62905), (547, 52325), (575, 49777), (805, 35555), (1495, 19145), (2093, 13675), (2275, 12581), (2735, 10465), (3829, 7475), (4025, 7111)]