164034140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{1627}}^1$

素因数の和:1778

約数の個数: 36

約数和(自身を含む): 349606488

約数和(自身を除く): 185572348

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1627, 3254, 5041, 6508, 8135, 10082, 16270, 20164, 25205, 32540, 50410, 100820, 115517, 231034, 462068, 577585, 1155170, 2310340, 8201707, 16403414, 32806828, 41008535, 82017070, 164034140]

約数ペア:

[(1, 164034140), (2, 82017070), (4, 41008535), (5, 32806828), (10, 16403414), (20, 8201707), (71, 2310340), (142, 1155170), (284, 577585), (355, 462068), (710, 231034), (1420, 115517), (1627, 100820), (3254, 50410), (5041, 32540), (6508, 25205), (8135, 20164), (10082, 16270)]