720558736

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2081}}^1$

素因数の和:2192

約数の個数: 80

約数和(自身を含む): 1579988160

約数和(自身を除く): 859429424

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 67, 68, 76, 134, 136, 152, 268, 272, 304, 323, 536, 646, 1072, 1139, 1273, 1292, 2081, 2278, 2546, 2584, 4162, 4556, 5092, 5168, 8324, 9112, 10184, 16648, 18224, 20368, 21641, 33296, 35377, 39539, 43282, 70754, 79078, 86564, 139427, 141508, 158156, 173128, 278854, 283016, 316312, 346256, 557708, 566032, 632624, 672163, 1115416, 1344326, 2230832, 2370259, 2649113, 2688652, 4740518, 5298226, 5377304, 9481036, 10596452, 10754608, 18962072, 21192904, 37924144, 42385808, 45034921, 90069842, 180139684, 360279368, 720558736]

約数ペア:

[(1, 720558736), (2, 360279368), (4, 180139684), (8, 90069842), (16, 45034921), (17, 42385808), (19, 37924144), (34, 21192904), (38, 18962072), (67, 10754608), (68, 10596452), (76, 9481036), (134, 5377304), (136, 5298226), (152, 4740518), (268, 2688652), (272, 2649113), (304, 2370259), (323, 2230832), (536, 1344326), (646, 1115416), (1072, 672163), (1139, 632624), (1273, 566032), (1292, 557708), (2081, 346256), (2278, 316312), (2546, 283016), (2584, 278854), (4162, 173128), (4556, 158156), (5092, 141508), (5168, 139427), (8324, 86564), (9112, 79078), (10184, 70754), (16648, 43282), (18224, 39539), (20368, 35377), (21641, 33296)]