20423487440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{6226673}}^1$

素因数の和:6226727

約数の個数: 40

約数和(自身を含む): 48642777288

約数和(自身を除く): 28219289848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 6226673, 12453346, 24906692, 31133365, 49813384, 62266730, 99626768, 124533460, 249066920, 255293593, 498133840, 510587186, 1021174372, 1276467965, 2042348744, 2552935930, 4084697488, 5105871860, 10211743720, 20423487440]

約数ペア:

[(1, 20423487440), (2, 10211743720), (4, 5105871860), (5, 4084697488), (8, 2552935930), (10, 2042348744), (16, 1276467965), (20, 1021174372), (40, 510587186), (41, 498133840), (80, 255293593), (82, 249066920), (164, 124533460), (205, 99626768), (328, 62266730), (410, 49813384), (656, 31133365), (820, 24906692), (1640, 12453346), (3280, 6226673)]