78226420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1481}}^1$

素因数の和:1648

約数の個数: 48

約数和(自身を含む): 174283200

約数和(自身を除く): 96056780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 278, 380, 556, 695, 1390, 1481, 2641, 2780, 2962, 5282, 5924, 7405, 10564, 13205, 14810, 26410, 28139, 29620, 52820, 56278, 112556, 140695, 205859, 281390, 411718, 562780, 823436, 1029295, 2058590, 3911321, 4117180, 7822642, 15645284, 19556605, 39113210, 78226420]

約数ペア:

[(1, 78226420), (2, 39113210), (4, 19556605), (5, 15645284), (10, 7822642), (19, 4117180), (20, 3911321), (38, 2058590), (76, 1029295), (95, 823436), (139, 562780), (190, 411718), (278, 281390), (380, 205859), (556, 140695), (695, 112556), (1390, 56278), (1481, 52820), (2641, 29620), (2780, 28139), (2962, 26410), (5282, 14810), (5924, 13205), (7405, 10564)]