817503940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{263}}^1$

素因数の和:553

約数の個数: 96

約数和(自身を含む): 1916006400

約数和(自身を除く): 1098502460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 199, 220, 263, 284, 355, 398, 526, 710, 781, 796, 995, 1052, 1315, 1420, 1562, 1990, 2189, 2630, 2893, 3124, 3905, 3980, 4378, 5260, 5786, 7810, 8756, 10945, 11572, 14129, 14465, 15620, 18673, 21890, 28258, 28930, 37346, 43780, 52337, 56516, 57860, 70645, 74692, 93365, 104674, 141290, 155419, 186730, 205403, 209348, 261685, 282580, 310838, 373460, 410806, 523370, 575707, 621676, 777095, 821612, 1027015, 1046740, 1151414, 1554190, 2054030, 2302828, 2878535, 3108380, 3715927, 4108060, 5757070, 7431854, 11514140, 14863708, 18579635, 37159270, 40875197, 74318540, 81750394, 163500788, 204375985, 408751970, 817503940]

約数ペア:

[(1, 817503940), (2, 408751970), (4, 204375985), (5, 163500788), (10, 81750394), (11, 74318540), (20, 40875197), (22, 37159270), (44, 18579635), (55, 14863708), (71, 11514140), (110, 7431854), (142, 5757070), (199, 4108060), (220, 3715927), (263, 3108380), (284, 2878535), (355, 2302828), (398, 2054030), (526, 1554190), (710, 1151414), (781, 1046740), (796, 1027015), (995, 821612), (1052, 777095), (1315, 621676), (1420, 575707), (1562, 523370), (1990, 410806), (2189, 373460), (2630, 310838), (2893, 282580), (3124, 261685), (3905, 209348), (3980, 205403), (4378, 186730), (5260, 155419), (5786, 141290), (7810, 104674), (8756, 93365), (10945, 74692), (11572, 70645), (14129, 57860), (14465, 56516), (15620, 52337), (18673, 43780), (21890, 37346), (28258, 28930)]