80738980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:401

約数の個数: 96

約数和(自身を含む): 206438400

約数和(自身を除く): 125699420

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 127, 133, 140, 190, 239, 254, 266, 380, 478, 508, 532, 635, 665, 889, 956, 1195, 1270, 1330, 1673, 1778, 2390, 2413, 2540, 2660, 3346, 3556, 4445, 4541, 4780, 4826, 6692, 8365, 8890, 9082, 9652, 12065, 16730, 16891, 17780, 18164, 22705, 24130, 30353, 31787, 33460, 33782, 45410, 48260, 60706, 63574, 67564, 84455, 90820, 121412, 127148, 151765, 158935, 168910, 212471, 303530, 317870, 337820, 424942, 576707, 607060, 635740, 849884, 1062355, 1153414, 2124710, 2306828, 2883535, 4036949, 4249420, 5767070, 8073898, 11534140, 16147796, 20184745, 40369490, 80738980]

約数ペア:

[(1, 80738980), (2, 40369490), (4, 20184745), (5, 16147796), (7, 11534140), (10, 8073898), (14, 5767070), (19, 4249420), (20, 4036949), (28, 2883535), (35, 2306828), (38, 2124710), (70, 1153414), (76, 1062355), (95, 849884), (127, 635740), (133, 607060), (140, 576707), (190, 424942), (239, 337820), (254, 317870), (266, 303530), (380, 212471), (478, 168910), (508, 158935), (532, 151765), (635, 127148), (665, 121412), (889, 90820), (956, 84455), (1195, 67564), (1270, 63574), (1330, 60706), (1673, 48260), (1778, 45410), (2390, 33782), (2413, 33460), (2540, 31787), (2660, 30353), (3346, 24130), (3556, 22705), (4445, 18164), (4541, 17780), (4780, 16891), (4826, 16730), (6692, 12065), (8365, 9652), (8890, 9082)]