161491140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{30937}}^1$

素因数の和:30981

約数の個数: 72

約数和(自身を含む): 506764440

約数和(自身を除く): 345273300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 30937, 61874, 92811, 123748, 154685, 185622, 278433, 309370, 371244, 464055, 556866, 618740, 897173, 928110, 1113732, 1392165, 1794346, 1856220, 2691519, 2784330, 3588692, 4485865, 5383038, 5568660, 8074557, 8971730, 10766076, 13457595, 16149114, 17943460, 26915190, 32298228, 40372785, 53830380, 80745570, 161491140]

約数ペア:

[(1, 161491140), (2, 80745570), (3, 53830380), (4, 40372785), (5, 32298228), (6, 26915190), (9, 17943460), (10, 16149114), (12, 13457595), (15, 10766076), (18, 8971730), (20, 8074557), (29, 5568660), (30, 5383038), (36, 4485865), (45, 3588692), (58, 2784330), (60, 2691519), (87, 1856220), (90, 1794346), (116, 1392165), (145, 1113732), (174, 928110), (180, 897173), (261, 618740), (290, 556866), (348, 464055), (435, 371244), (522, 309370), (580, 278433), (870, 185622), (1044, 154685), (1305, 123748), (1740, 92811), (2610, 61874), (5220, 30937)]