20138289416

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{65851}}^1$

素因数の和:66034

約数の個数: 64

約数和(自身を含む): 44505415680

約数和(自身を除く): 24367126264

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 127, 172, 254, 301, 344, 508, 602, 889, 1016, 1204, 1778, 2408, 3556, 5461, 7112, 10922, 21844, 38227, 43688, 65851, 76454, 131702, 152908, 263404, 305816, 460957, 526808, 921914, 1843828, 2831593, 3687656, 5663186, 8363077, 11326372, 16726154, 19821151, 22652744, 33452308, 39642302, 58541539, 66904616, 79284604, 117083078, 158569208, 234166156, 359612311, 468332312, 719224622, 1438449244, 2517286177, 2876898488, 5034572354, 10069144708, 20138289416]

約数ペア:

[(1, 20138289416), (2, 10069144708), (4, 5034572354), (7, 2876898488), (8, 2517286177), (14, 1438449244), (28, 719224622), (43, 468332312), (56, 359612311), (86, 234166156), (127, 158569208), (172, 117083078), (254, 79284604), (301, 66904616), (344, 58541539), (508, 39642302), (602, 33452308), (889, 22652744), (1016, 19821151), (1204, 16726154), (1778, 11326372), (2408, 8363077), (3556, 5663186), (5461, 3687656), (7112, 2831593), (10922, 1843828), (21844, 921914), (38227, 526808), (43688, 460957), (65851, 305816), (76454, 263404), (131702, 152908)]