163694140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{2243}}^1$

素因数の和:2382

約数の個数: 48

約数和(自身を含む): 356257440

約数和(自身を除く): 192563300

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 445, 820, 890, 1780, 2243, 3649, 4486, 7298, 8972, 11215, 14596, 18245, 22430, 36490, 44860, 72980, 91963, 183926, 199627, 367852, 399254, 459815, 798508, 919630, 998135, 1839260, 1996270, 3992540, 8184707, 16369414, 32738828, 40923535, 81847070, 163694140]

約数ペア:

[(1, 163694140), (2, 81847070), (4, 40923535), (5, 32738828), (10, 16369414), (20, 8184707), (41, 3992540), (82, 1996270), (89, 1839260), (164, 998135), (178, 919630), (205, 798508), (356, 459815), (410, 399254), (445, 367852), (820, 199627), (890, 183926), (1780, 91963), (2243, 72980), (3649, 44860), (4486, 36490), (7298, 22430), (8972, 18245), (11215, 14596)]