20147220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:214

約数の個数: 144

約数和(自身を含む): 66306240

約数和(自身を除く): 46159020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 43, 45, 57, 60, 76, 86, 90, 95, 114, 129, 137, 171, 172, 180, 190, 215, 228, 258, 274, 285, 342, 380, 387, 411, 430, 516, 548, 570, 645, 684, 685, 774, 817, 822, 855, 860, 1140, 1233, 1290, 1370, 1548, 1634, 1644, 1710, 1935, 2055, 2451, 2466, 2580, 2603, 2740, 3268, 3420, 3870, 4085, 4110, 4902, 4932, 5206, 5891, 6165, 7353, 7740, 7809, 8170, 8220, 9804, 10412, 11782, 12255, 12330, 13015, 14706, 15618, 16340, 17673, 23427, 23564, 24510, 24660, 26030, 29412, 29455, 31236, 35346, 36765, 39045, 46854, 49020, 52060, 53019, 58910, 70692, 73530, 78090, 88365, 93708, 106038, 111929, 117135, 117820, 147060, 156180, 176730, 212076, 223858, 234270, 265095, 335787, 353460, 447716, 468540, 530190, 559645, 671574, 1007361, 1060380, 1119290, 1343148, 1678935, 2014722, 2238580, 3357870, 4029444, 5036805, 6715740, 10073610, 20147220]

約数ペア:

[(1, 20147220), (2, 10073610), (3, 6715740), (4, 5036805), (5, 4029444), (6, 3357870), (9, 2238580), (10, 2014722), (12, 1678935), (15, 1343148), (18, 1119290), (19, 1060380), (20, 1007361), (30, 671574), (36, 559645), (38, 530190), (43, 468540), (45, 447716), (57, 353460), (60, 335787), (76, 265095), (86, 234270), (90, 223858), (95, 212076), (114, 176730), (129, 156180), (137, 147060), (171, 117820), (172, 117135), (180, 111929), (190, 106038), (215, 93708), (228, 88365), (258, 78090), (274, 73530), (285, 70692), (342, 58910), (380, 53019), (387, 52060), (411, 49020), (430, 46854), (516, 39045), (548, 36765), (570, 35346), (645, 31236), (684, 29455), (685, 29412), (774, 26030), (817, 24660), (822, 24510), (855, 23564), (860, 23427), (1140, 17673), (1233, 16340), (1290, 15618), (1370, 14706), (1548, 13015), (1634, 12330), (1644, 12255), (1710, 11782), (1935, 10412), (2055, 9804), (2451, 8220), (2466, 8170), (2580, 7809), (2603, 7740), (2740, 7353), (3268, 6165), (3420, 5891), (3870, 5206), (4085, 4932), (4110, 4902)]