28004856

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 81423360

約数和(自身を除く): 53418504

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 37, 44, 47, 61, 66, 74, 88, 94, 111, 122, 132, 141, 148, 183, 188, 222, 244, 264, 282, 296, 366, 376, 407, 444, 488, 517, 564, 671, 732, 814, 888, 1034, 1128, 1221, 1342, 1464, 1551, 1628, 1739, 2013, 2068, 2257, 2442, 2684, 2867, 3102, 3256, 3478, 4026, 4136, 4514, 4884, 5217, 5368, 5734, 6204, 6771, 6956, 8052, 8601, 9028, 9768, 10434, 11468, 12408, 13542, 13912, 16104, 17202, 18056, 19129, 20868, 22936, 24827, 27084, 31537, 34404, 38258, 41736, 49654, 54168, 57387, 63074, 68808, 74481, 76516, 94611, 99308, 106079, 114774, 126148, 148962, 153032, 189222, 198616, 212158, 229548, 252296, 297924, 318237, 378444, 424316, 459096, 595848, 636474, 756888, 848632, 1166869, 1272948, 2333738, 2545896, 3500607, 4667476, 7001214, 9334952, 14002428, 28004856]

約数ペア:

[(1, 28004856), (2, 14002428), (3, 9334952), (4, 7001214), (6, 4667476), (8, 3500607), (11, 2545896), (12, 2333738), (22, 1272948), (24, 1166869), (33, 848632), (37, 756888), (44, 636474), (47, 595848), (61, 459096), (66, 424316), (74, 378444), (88, 318237), (94, 297924), (111, 252296), (122, 229548), (132, 212158), (141, 198616), (148, 189222), (183, 153032), (188, 148962), (222, 126148), (244, 114774), (264, 106079), (282, 99308), (296, 94611), (366, 76516), (376, 74481), (407, 68808), (444, 63074), (488, 57387), (517, 54168), (564, 49654), (671, 41736), (732, 38258), (814, 34404), (888, 31537), (1034, 27084), (1128, 24827), (1221, 22936), (1342, 20868), (1464, 19129), (1551, 18056), (1628, 17202), (1739, 16104), (2013, 13912), (2068, 13542), (2257, 12408), (2442, 11468), (2684, 10434), (2867, 9768), (3102, 9028), (3256, 8601), (3478, 8052), (4026, 6956), (4136, 6771), (4514, 6204), (4884, 5734), (5217, 5368)]