81201730

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 159667200

約数和(自身を除く): 78465470

約数列:

[1, 2, 5, 10, 23, 41, 46, 79, 82, 109, 115, 158, 205, 218, 230, 395, 410, 545, 790, 943, 1090, 1817, 1886, 2507, 3239, 3634, 4469, 4715, 5014, 6478, 8611, 8938, 9085, 9430, 12535, 16195, 17222, 18170, 22345, 25070, 32390, 43055, 44690, 74497, 86110, 102787, 148994, 198053, 205574, 353051, 372485, 396106, 513935, 706102, 744970, 990265, 1027870, 1765255, 1980530, 3530510, 8120173, 16240346, 40600865, 81201730]

約数ペア:

[(1, 81201730), (2, 40600865), (5, 16240346), (10, 8120173), (23, 3530510), (41, 1980530), (46, 1765255), (79, 1027870), (82, 990265), (109, 744970), (115, 706102), (158, 513935), (205, 396106), (218, 372485), (230, 353051), (395, 205574), (410, 198053), (545, 148994), (790, 102787), (943, 86110), (1090, 74497), (1817, 44690), (1886, 43055), (2507, 32390), (3239, 25070), (3634, 22345), (4469, 18170), (4715, 17222), (5014, 16195), (6478, 12535), (8611, 9430), (8938, 9085)]