26515640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 63504000

約数和(自身を除く): 36988360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 139, 152, 190, 251, 278, 380, 502, 556, 695, 760, 1004, 1112, 1255, 1390, 2008, 2510, 2641, 2780, 4769, 5020, 5282, 5560, 9538, 10040, 10564, 13205, 19076, 21128, 23845, 26410, 34889, 38152, 47690, 52820, 69778, 95380, 105640, 139556, 174445, 190760, 279112, 348890, 662891, 697780, 1325782, 1395560, 2651564, 3314455, 5303128, 6628910, 13257820, 26515640]

約数ペア:

[(1, 26515640), (2, 13257820), (4, 6628910), (5, 5303128), (8, 3314455), (10, 2651564), (19, 1395560), (20, 1325782), (38, 697780), (40, 662891), (76, 348890), (95, 279112), (139, 190760), (152, 174445), (190, 139556), (251, 105640), (278, 95380), (380, 69778), (502, 52820), (556, 47690), (695, 38152), (760, 34889), (1004, 26410), (1112, 23845), (1255, 21128), (1390, 19076), (2008, 13205), (2510, 10564), (2641, 10040), (2780, 9538), (4769, 5560), (5020, 5282)]