646477356

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{21319}}^1$

素因数の和:21371

約数の個数: 72

約数和(自身を含む): 1819534080

約数和(自身を除く): 1173056724

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 84, 114, 133, 228, 266, 361, 399, 532, 722, 798, 1083, 1444, 1596, 2166, 2527, 4332, 5054, 7581, 10108, 15162, 21319, 30324, 42638, 63957, 85276, 127914, 149233, 255828, 298466, 405061, 447699, 596932, 810122, 895398, 1215183, 1620244, 1790796, 2430366, 2835427, 4860732, 5670854, 7696159, 8506281, 11341708, 15392318, 17012562, 23088477, 30784636, 34025124, 46176954, 53873113, 92353908, 107746226, 161619339, 215492452, 323238678, 646477356]

約数ペア:

[(1, 646477356), (2, 323238678), (3, 215492452), (4, 161619339), (6, 107746226), (7, 92353908), (12, 53873113), (14, 46176954), (19, 34025124), (21, 30784636), (28, 23088477), (38, 17012562), (42, 15392318), (57, 11341708), (76, 8506281), (84, 7696159), (114, 5670854), (133, 4860732), (228, 2835427), (266, 2430366), (361, 1790796), (399, 1620244), (532, 1215183), (722, 895398), (798, 810122), (1083, 596932), (1444, 447699), (1596, 405061), (2166, 298466), (2527, 255828), (4332, 149233), (5054, 127914), (7581, 85276), (10108, 63957), (15162, 42638), (21319, 30324)]