27720290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 57286656

約数和(自身を除く): 29566366

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 73, 115, 127, 130, 146, 230, 254, 299, 365, 598, 635, 730, 949, 1270, 1495, 1651, 1679, 1898, 2921, 2990, 3302, 3358, 4745, 5842, 8255, 8395, 9271, 9490, 14605, 16510, 16790, 18542, 21827, 29210, 37973, 43654, 46355, 75946, 92710, 109135, 120523, 189865, 213233, 218270, 241046, 379730, 426466, 602615, 1066165, 1205230, 2132330, 2772029, 5544058, 13860145, 27720290]

約数ペア:

[(1, 27720290), (2, 13860145), (5, 5544058), (10, 2772029), (13, 2132330), (23, 1205230), (26, 1066165), (46, 602615), (65, 426466), (73, 379730), (115, 241046), (127, 218270), (130, 213233), (146, 189865), (230, 120523), (254, 109135), (299, 92710), (365, 75946), (598, 46355), (635, 43654), (730, 37973), (949, 29210), (1270, 21827), (1495, 18542), (1651, 16790), (1679, 16510), (1898, 14605), (2921, 9490), (2990, 9271), (3302, 8395), (3358, 8255), (4745, 5842)]