90987480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{263}}^1$

素因数の和:342

約数の個数: 144

約数和(自身を含む): 306717840

約数和(自身を除く): 215730360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 263, 279, 310, 360, 372, 465, 526, 558, 620, 744, 789, 930, 961, 1052, 1116, 1240, 1315, 1395, 1578, 1860, 1922, 2104, 2232, 2367, 2630, 2790, 2883, 3156, 3720, 3844, 3945, 4734, 4805, 5260, 5580, 5766, 6312, 7688, 7890, 8153, 8649, 9468, 9610, 10520, 11160, 11532, 11835, 14415, 15780, 16306, 17298, 18936, 19220, 23064, 23670, 24459, 28830, 31560, 32612, 34596, 38440, 40765, 43245, 47340, 48918, 57660, 65224, 69192, 73377, 81530, 86490, 94680, 97836, 115320, 122295, 146754, 163060, 172980, 195672, 244590, 252743, 293508, 326120, 345960, 366885, 489180, 505486, 587016, 733770, 758229, 978360, 1010972, 1263715, 1467540, 1516458, 2021944, 2274687, 2527430, 2935080, 3032916, 3791145, 4549374, 5054860, 6065832, 7582290, 9098748, 10109720, 11373435, 15164580, 18197496, 22746870, 30329160, 45493740, 90987480]

約数ペア:

[(1, 90987480), (2, 45493740), (3, 30329160), (4, 22746870), (5, 18197496), (6, 15164580), (8, 11373435), (9, 10109720), (10, 9098748), (12, 7582290), (15, 6065832), (18, 5054860), (20, 4549374), (24, 3791145), (30, 3032916), (31, 2935080), (36, 2527430), (40, 2274687), (45, 2021944), (60, 1516458), (62, 1467540), (72, 1263715), (90, 1010972), (93, 978360), (120, 758229), (124, 733770), (155, 587016), (180, 505486), (186, 489180), (248, 366885), (263, 345960), (279, 326120), (310, 293508), (360, 252743), (372, 244590), (465, 195672), (526, 172980), (558, 163060), (620, 146754), (744, 122295), (789, 115320), (930, 97836), (961, 94680), (1052, 86490), (1116, 81530), (1240, 73377), (1315, 69192), (1395, 65224), (1578, 57660), (1860, 48918), (1922, 47340), (2104, 43245), (2232, 40765), (2367, 38440), (2630, 34596), (2790, 32612), (2883, 31560), (3156, 28830), (3720, 24459), (3844, 23670), (3945, 23064), (4734, 19220), (4805, 18936), (5260, 17298), (5580, 16306), (5766, 15780), (6312, 14415), (7688, 11835), (7890, 11532), (8153, 11160), (8649, 10520), (9468, 9610)]