90227620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{4003}}^1$

素因数の和:4049

約数の個数: 72

約数和(自身を含む): 230053824

約数和(自身を除く): 139826204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 4003, 4508, 5635, 8006, 11270, 16012, 20015, 22540, 28021, 40030, 56042, 80060, 92069, 112084, 140105, 184138, 196147, 280210, 368276, 392294, 460345, 560420, 644483, 784588, 920690, 980735, 1288966, 1841380, 1961470, 2577932, 3222415, 3922940, 4511381, 6444830, 9022762, 12889660, 18045524, 22556905, 45113810, 90227620]

約数ペア:

[(1, 90227620), (2, 45113810), (4, 22556905), (5, 18045524), (7, 12889660), (10, 9022762), (14, 6444830), (20, 4511381), (23, 3922940), (28, 3222415), (35, 2577932), (46, 1961470), (49, 1841380), (70, 1288966), (92, 980735), (98, 920690), (115, 784588), (140, 644483), (161, 560420), (196, 460345), (230, 392294), (245, 368276), (322, 280210), (460, 196147), (490, 184138), (644, 140105), (805, 112084), (980, 92069), (1127, 80060), (1610, 56042), (2254, 40030), (3220, 28021), (4003, 22540), (4508, 20015), (5635, 16012), (8006, 11270)]