281557128

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:367

約数の個数: 128

約数和(自身を含む): 780088320

約数和(自身を除く): 498531192

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 31, 34, 51, 62, 68, 93, 102, 113, 124, 136, 186, 197, 204, 226, 248, 339, 372, 394, 408, 452, 527, 591, 678, 744, 788, 904, 1054, 1182, 1356, 1576, 1581, 1921, 2108, 2364, 2712, 3162, 3349, 3503, 3842, 4216, 4728, 5763, 6107, 6324, 6698, 7006, 7684, 10047, 10509, 11526, 12214, 12648, 13396, 14012, 15368, 18321, 20094, 21018, 22261, 23052, 24428, 26792, 28024, 36642, 40188, 42036, 44522, 46104, 48856, 59551, 66783, 73284, 80376, 84072, 89044, 103819, 119102, 133566, 146568, 178088, 178653, 207638, 238204, 267132, 311457, 357306, 378437, 415276, 476408, 534264, 622914, 690091, 714612, 756874, 830552, 1135311, 1245828, 1380182, 1429224, 1513748, 2070273, 2270622, 2491656, 2760364, 3027496, 4140546, 4541244, 5520728, 8281092, 9082488, 11731547, 16562184, 23463094, 35194641, 46926188, 70389282, 93852376, 140778564, 281557128]

約数ペア:

[(1, 281557128), (2, 140778564), (3, 93852376), (4, 70389282), (6, 46926188), (8, 35194641), (12, 23463094), (17, 16562184), (24, 11731547), (31, 9082488), (34, 8281092), (51, 5520728), (62, 4541244), (68, 4140546), (93, 3027496), (102, 2760364), (113, 2491656), (124, 2270622), (136, 2070273), (186, 1513748), (197, 1429224), (204, 1380182), (226, 1245828), (248, 1135311), (339, 830552), (372, 756874), (394, 714612), (408, 690091), (452, 622914), (527, 534264), (591, 476408), (678, 415276), (744, 378437), (788, 357306), (904, 311457), (1054, 267132), (1182, 238204), (1356, 207638), (1576, 178653), (1581, 178088), (1921, 146568), (2108, 133566), (2364, 119102), (2712, 103819), (3162, 89044), (3349, 84072), (3503, 80376), (3842, 73284), (4216, 66783), (4728, 59551), (5763, 48856), (6107, 46104), (6324, 44522), (6698, 42036), (7006, 40188), (7684, 36642), (10047, 28024), (10509, 26792), (11526, 24428), (12214, 23052), (12648, 22261), (13396, 21018), (14012, 20094), (15368, 18321)]