18776464

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:272

約数の個数: 80

約数和(自身を含む): 44782848

約数和(自身を除く): 26006384

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 37, 46, 56, 74, 92, 112, 148, 161, 184, 197, 259, 296, 322, 368, 394, 518, 592, 644, 788, 851, 1036, 1288, 1379, 1576, 1702, 2072, 2576, 2758, 3152, 3404, 4144, 4531, 5516, 5957, 6808, 7289, 9062, 11032, 11914, 13616, 14578, 18124, 22064, 23828, 29156, 31717, 36248, 47656, 51023, 58312, 63434, 72496, 95312, 102046, 116624, 126868, 167647, 204092, 253736, 335294, 408184, 507472, 670588, 816368, 1173529, 1341176, 2347058, 2682352, 4694116, 9388232, 18776464]

約数ペア:

[(1, 18776464), (2, 9388232), (4, 4694116), (7, 2682352), (8, 2347058), (14, 1341176), (16, 1173529), (23, 816368), (28, 670588), (37, 507472), (46, 408184), (56, 335294), (74, 253736), (92, 204092), (112, 167647), (148, 126868), (161, 116624), (184, 102046), (197, 95312), (259, 72496), (296, 63434), (322, 58312), (368, 51023), (394, 47656), (518, 36248), (592, 31717), (644, 29156), (788, 23828), (851, 22064), (1036, 18124), (1288, 14578), (1379, 13616), (1576, 11914), (1702, 11032), (2072, 9062), (2576, 7289), (2758, 6808), (3152, 5957), (3404, 5516), (4144, 4531)]