18156636928

素因数分解:

$2^8\times {\mathrm{47}}^2\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:538

約数の個数: 108

約数和(自身を含む): 37524647272

約数和(自身を除く): 19368010344

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 97, 128, 188, 194, 256, 331, 376, 388, 662, 752, 776, 1324, 1504, 1552, 2209, 2648, 3008, 3104, 4418, 4559, 5296, 6016, 6208, 8836, 9118, 10592, 12032, 12416, 15557, 17672, 18236, 21184, 24832, 31114, 32107, 35344, 36472, 42368, 62228, 64214, 70688, 72944, 84736, 124456, 128428, 141376, 145888, 214273, 248912, 256856, 282752, 291776, 428546, 497824, 513712, 565504, 583552, 731179, 857092, 995648, 1027424, 1167104, 1462358, 1509029, 1714184, 1991296, 2054848, 2924716, 3018058, 3428368, 3982592, 4109696, 5849432, 6036116, 6856736, 8219392, 11698864, 12072232, 13713472, 23397728, 24144464, 27426944, 46795456, 48288928, 54853888, 70924363, 93590912, 96577856, 141848726, 187181824, 193155712, 283697452, 386311424, 567394904, 1134789808, 2269579616, 4539159232, 9078318464, 18156636928]

約数ペア:

[(1, 18156636928), (2, 9078318464), (4, 4539159232), (8, 2269579616), (16, 1134789808), (32, 567394904), (47, 386311424), (64, 283697452), (94, 193155712), (97, 187181824), (128, 141848726), (188, 96577856), (194, 93590912), (256, 70924363), (331, 54853888), (376, 48288928), (388, 46795456), (662, 27426944), (752, 24144464), (776, 23397728), (1324, 13713472), (1504, 12072232), (1552, 11698864), (2209, 8219392), (2648, 6856736), (3008, 6036116), (3104, 5849432), (4418, 4109696), (4559, 3982592), (5296, 3428368), (6016, 3018058), (6208, 2924716), (8836, 2054848), (9118, 1991296), (10592, 1714184), (12032, 1509029), (12416, 1462358), (15557, 1167104), (17672, 1027424), (18236, 995648), (21184, 857092), (24832, 731179), (31114, 583552), (32107, 565504), (35344, 513712), (36472, 497824), (42368, 428546), (62228, 291776), (64214, 282752), (70688, 256856), (72944, 248912), (84736, 214273), (124456, 145888), (128428, 141376)]