166399340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{1213}}^1$

素因数の和:1279

約数の個数: 48

約数和(自身を含む): 369153120

約数和(自身を除く): 202753780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1213, 1444, 1805, 2426, 3610, 4852, 6065, 6859, 7220, 12130, 13718, 23047, 24260, 27436, 34295, 46094, 68590, 92188, 115235, 137180, 230470, 437893, 460940, 875786, 1751572, 2189465, 4378930, 8319967, 8757860, 16639934, 33279868, 41599835, 83199670, 166399340]

約数ペア:

[(1, 166399340), (2, 83199670), (4, 41599835), (5, 33279868), (10, 16639934), (19, 8757860), (20, 8319967), (38, 4378930), (76, 2189465), (95, 1751572), (190, 875786), (361, 460940), (380, 437893), (722, 230470), (1213, 137180), (1444, 115235), (1805, 92188), (2426, 68590), (3610, 46094), (4852, 34295), (6065, 27436), (6859, 24260), (7220, 23047), (12130, 13718)]