80717770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:343

約数の個数: 64

約数和(自身を含む): 171072000

約数和(自身を除く): 90354230

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 109, 142, 149, 218, 298, 355, 497, 545, 710, 745, 763, 994, 1043, 1090, 1490, 1526, 2086, 2485, 3815, 4970, 5215, 7630, 7739, 10430, 10579, 15478, 16241, 21158, 32482, 38695, 52895, 54173, 74053, 77390, 81205, 105790, 108346, 113687, 148106, 162410, 227374, 270865, 370265, 541730, 568435, 740530, 1136870, 1153111, 2306222, 5765555, 8071777, 11531110, 16143554, 40358885, 80717770]

約数ペア:

[(1, 80717770), (2, 40358885), (5, 16143554), (7, 11531110), (10, 8071777), (14, 5765555), (35, 2306222), (70, 1153111), (71, 1136870), (109, 740530), (142, 568435), (149, 541730), (218, 370265), (298, 270865), (355, 227374), (497, 162410), (545, 148106), (710, 113687), (745, 108346), (763, 105790), (994, 81205), (1043, 77390), (1090, 74053), (1490, 54173), (1526, 52895), (2086, 38695), (2485, 32482), (3815, 21158), (4970, 16241), (5215, 15478), (7630, 10579), (7739, 10430)]