28981064

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 65007360

約数和(自身を除く): 36026296

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 71, 74, 142, 148, 197, 259, 284, 296, 394, 497, 518, 568, 788, 994, 1036, 1379, 1576, 1988, 2072, 2627, 2758, 3976, 5254, 5516, 7289, 10508, 11032, 13987, 14578, 18389, 21016, 27974, 29156, 36778, 51023, 55948, 58312, 73556, 97909, 102046, 111896, 147112, 195818, 204092, 391636, 408184, 517519, 783272, 1035038, 2070076, 3622633, 4140152, 7245266, 14490532, 28981064]

約数ペア:

[(1, 28981064), (2, 14490532), (4, 7245266), (7, 4140152), (8, 3622633), (14, 2070076), (28, 1035038), (37, 783272), (56, 517519), (71, 408184), (74, 391636), (142, 204092), (148, 195818), (197, 147112), (259, 111896), (284, 102046), (296, 97909), (394, 73556), (497, 58312), (518, 55948), (568, 51023), (788, 36778), (994, 29156), (1036, 27974), (1379, 21016), (1576, 18389), (1988, 14578), (2072, 13987), (2627, 11032), (2758, 10508), (3976, 7289), (5254, 5516)]