646006612

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 1271966976

約数和(自身を除く): 625960364

約数列:

[1, 2, 4, 19, 23, 38, 46, 53, 76, 92, 106, 212, 361, 367, 437, 722, 734, 874, 1007, 1219, 1444, 1468, 1748, 2014, 2438, 4028, 4876, 6973, 8303, 8441, 13946, 16606, 16882, 19133, 19451, 23161, 27892, 33212, 33764, 38266, 38902, 46322, 76532, 77804, 92644, 132487, 160379, 264974, 320758, 369569, 440059, 447373, 529948, 641516, 739138, 880118, 894746, 1478276, 1760236, 1789492, 3047201, 6094402, 7021811, 8500087, 12188804, 14043622, 17000174, 28087244, 34000348, 161501653, 323003306, 646006612]

約数ペア:

[(1, 646006612), (2, 323003306), (4, 161501653), (19, 34000348), (23, 28087244), (38, 17000174), (46, 14043622), (53, 12188804), (76, 8500087), (92, 7021811), (106, 6094402), (212, 3047201), (361, 1789492), (367, 1760236), (437, 1478276), (722, 894746), (734, 880118), (874, 739138), (1007, 641516), (1219, 529948), (1444, 447373), (1468, 440059), (1748, 369569), (2014, 320758), (2438, 264974), (4028, 160379), (4876, 132487), (6973, 92644), (8303, 77804), (8441, 76532), (13946, 46322), (16606, 38902), (16882, 38266), (19133, 33764), (19451, 33212), (23161, 27892)]