81556740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{7949}}^1$

素因数の和:7986

約数の個数: 96

約数和(自身を含む): 267120000

約数和(自身を除く): 185563260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 90, 95, 108, 114, 135, 171, 180, 190, 228, 270, 285, 342, 380, 513, 540, 570, 684, 855, 1026, 1140, 1710, 2052, 2565, 3420, 5130, 7949, 10260, 15898, 23847, 31796, 39745, 47694, 71541, 79490, 95388, 119235, 143082, 151031, 158980, 214623, 238470, 286164, 302062, 357705, 429246, 453093, 476940, 604124, 715410, 755155, 858492, 906186, 1073115, 1359279, 1430820, 1510310, 1812372, 2146230, 2265465, 2718558, 3020620, 4077837, 4292460, 4530930, 5437116, 6796395, 8155674, 9061860, 13592790, 16311348, 20389185, 27185580, 40778370, 81556740]

約数ペア:

[(1, 81556740), (2, 40778370), (3, 27185580), (4, 20389185), (5, 16311348), (6, 13592790), (9, 9061860), (10, 8155674), (12, 6796395), (15, 5437116), (18, 4530930), (19, 4292460), (20, 4077837), (27, 3020620), (30, 2718558), (36, 2265465), (38, 2146230), (45, 1812372), (54, 1510310), (57, 1430820), (60, 1359279), (76, 1073115), (90, 906186), (95, 858492), (108, 755155), (114, 715410), (135, 604124), (171, 476940), (180, 453093), (190, 429246), (228, 357705), (270, 302062), (285, 286164), (342, 238470), (380, 214623), (513, 158980), (540, 151031), (570, 143082), (684, 119235), (855, 95388), (1026, 79490), (1140, 71541), (1710, 47694), (2052, 39745), (2565, 31796), (3420, 23847), (5130, 15898), (7949, 10260)]