81271740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6481}}^1$

素因数の和:6523

約数の個数: 96

約数和(自身を含む): 261354240

約数和(自身を除く): 180082500

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 30, 33, 38, 44, 55, 57, 60, 66, 76, 95, 110, 114, 132, 165, 190, 209, 220, 228, 285, 330, 380, 418, 570, 627, 660, 836, 1045, 1140, 1254, 2090, 2508, 3135, 4180, 6270, 6481, 12540, 12962, 19443, 25924, 32405, 38886, 64810, 71291, 77772, 97215, 123139, 129620, 142582, 194430, 213873, 246278, 285164, 356455, 369417, 388860, 427746, 492556, 615695, 712910, 738834, 855492, 1069365, 1231390, 1354529, 1425820, 1477668, 1847085, 2138730, 2462780, 2709058, 3694170, 4063587, 4277460, 5418116, 6772645, 7388340, 8127174, 13545290, 16254348, 20317935, 27090580, 40635870, 81271740]

約数ペア:

[(1, 81271740), (2, 40635870), (3, 27090580), (4, 20317935), (5, 16254348), (6, 13545290), (10, 8127174), (11, 7388340), (12, 6772645), (15, 5418116), (19, 4277460), (20, 4063587), (22, 3694170), (30, 2709058), (33, 2462780), (38, 2138730), (44, 1847085), (55, 1477668), (57, 1425820), (60, 1354529), (66, 1231390), (76, 1069365), (95, 855492), (110, 738834), (114, 712910), (132, 615695), (165, 492556), (190, 427746), (209, 388860), (220, 369417), (228, 356455), (285, 285164), (330, 246278), (380, 213873), (418, 194430), (570, 142582), (627, 129620), (660, 123139), (836, 97215), (1045, 77772), (1140, 71291), (1254, 64810), (2090, 38886), (2508, 32405), (3135, 25924), (4180, 19443), (6270, 12962), (6481, 12540)]