991567444

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:725

約数の個数: 96

約数和(自身を含む): 2155862016

約数和(自身を除く): 1164294572

約数列:

[1, 2, 4, 7, 14, 23, 28, 43, 46, 61, 86, 92, 122, 161, 172, 244, 301, 322, 427, 587, 602, 644, 854, 989, 1174, 1204, 1403, 1708, 1978, 2348, 2623, 2806, 3956, 4109, 5246, 5612, 6923, 8218, 9821, 10492, 13501, 13846, 16436, 18361, 19642, 25241, 27002, 27692, 35807, 36722, 39284, 50482, 54004, 60329, 71614, 73444, 94507, 100964, 120658, 143228, 176687, 189014, 241316, 250649, 353374, 378028, 422303, 501298, 580543, 706748, 823561, 844606, 1002596, 1161086, 1539701, 1647122, 1689212, 2322172, 3079402, 3294244, 4063801, 5764927, 6158804, 8127602, 10777907, 11529854, 16255204, 21555814, 23059708, 35413123, 43111628, 70826246, 141652492, 247891861, 495783722, 991567444]

約数ペア:

[(1, 991567444), (2, 495783722), (4, 247891861), (7, 141652492), (14, 70826246), (23, 43111628), (28, 35413123), (43, 23059708), (46, 21555814), (61, 16255204), (86, 11529854), (92, 10777907), (122, 8127602), (161, 6158804), (172, 5764927), (244, 4063801), (301, 3294244), (322, 3079402), (427, 2322172), (587, 1689212), (602, 1647122), (644, 1539701), (854, 1161086), (989, 1002596), (1174, 844606), (1204, 823561), (1403, 706748), (1708, 580543), (1978, 501298), (2348, 422303), (2623, 378028), (2806, 353374), (3956, 250649), (4109, 241316), (5246, 189014), (5612, 176687), (6923, 143228), (8218, 120658), (9821, 100964), (10492, 94507), (13501, 73444), (13846, 71614), (16436, 60329), (18361, 54004), (19642, 50482), (25241, 39284), (27002, 36722), (27692, 35807)]