20266768

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{409}}^1$

素因数の和:599

約数の個数: 40

約数和(自身を含む): 41688800

約数和(自身を除く): 21422032

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 163, 304, 326, 409, 652, 818, 1304, 1636, 2608, 3097, 3272, 6194, 6544, 7771, 12388, 15542, 24776, 31084, 49552, 62168, 66667, 124336, 133334, 266668, 533336, 1066672, 1266673, 2533346, 5066692, 10133384, 20266768]

約数ペア:

[(1, 20266768), (2, 10133384), (4, 5066692), (8, 2533346), (16, 1266673), (19, 1066672), (38, 533336), (76, 266668), (152, 133334), (163, 124336), (304, 66667), (326, 62168), (409, 49552), (652, 31084), (818, 24776), (1304, 15542), (1636, 12388), (2608, 7771), (3097, 6544), (3272, 6194)]