18885240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 192

約数和(自身を含む): 70761600

約数和(自身を除く): 51876360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 19, 20, 22, 24, 30, 33, 36, 38, 40, 44, 45, 55, 57, 60, 66, 72, 76, 88, 90, 95, 99, 110, 114, 120, 132, 152, 165, 171, 180, 190, 198, 209, 220, 228, 251, 264, 285, 330, 342, 360, 380, 396, 418, 440, 456, 495, 502, 570, 627, 660, 684, 753, 760, 792, 836, 855, 990, 1004, 1045, 1140, 1254, 1255, 1320, 1368, 1506, 1672, 1710, 1881, 1980, 2008, 2090, 2259, 2280, 2508, 2510, 2761, 3012, 3135, 3420, 3762, 3765, 3960, 4180, 4518, 4769, 5016, 5020, 5522, 6024, 6270, 6840, 7524, 7530, 8283, 8360, 9036, 9405, 9538, 10040, 11044, 11295, 12540, 13805, 14307, 15048, 15060, 16566, 18072, 18810, 19076, 22088, 22590, 23845, 24849, 25080, 27610, 28614, 30120, 33132, 37620, 38152, 41415, 42921, 45180, 47690, 49698, 52459, 55220, 57228, 66264, 71535, 75240, 82830, 85842, 90360, 95380, 99396, 104918, 110440, 114456, 124245, 143070, 157377, 165660, 171684, 190760, 198792, 209836, 214605, 248490, 262295, 286140, 314754, 331320, 343368, 419672, 429210, 472131, 496980, 524590, 572280, 629508, 786885, 858420, 944262, 993960, 1049180, 1259016, 1573770, 1716840, 1888524, 2098360, 2360655, 3147540, 3777048, 4721310, 6295080, 9442620, 18885240]

約数ペア:

[(1, 18885240), (2, 9442620), (3, 6295080), (4, 4721310), (5, 3777048), (6, 3147540), (8, 2360655), (9, 2098360), (10, 1888524), (11, 1716840), (12, 1573770), (15, 1259016), (18, 1049180), (19, 993960), (20, 944262), (22, 858420), (24, 786885), (30, 629508), (33, 572280), (36, 524590), (38, 496980), (40, 472131), (44, 429210), (45, 419672), (55, 343368), (57, 331320), (60, 314754), (66, 286140), (72, 262295), (76, 248490), (88, 214605), (90, 209836), (95, 198792), (99, 190760), (110, 171684), (114, 165660), (120, 157377), (132, 143070), (152, 124245), (165, 114456), (171, 110440), (180, 104918), (190, 99396), (198, 95380), (209, 90360), (220, 85842), (228, 82830), (251, 75240), (264, 71535), (285, 66264), (330, 57228), (342, 55220), (360, 52459), (380, 49698), (396, 47690), (418, 45180), (440, 42921), (456, 41415), (495, 38152), (502, 37620), (570, 33132), (627, 30120), (660, 28614), (684, 27610), (753, 25080), (760, 24849), (792, 23845), (836, 22590), (855, 22088), (990, 19076), (1004, 18810), (1045, 18072), (1140, 16566), (1254, 15060), (1255, 15048), (1320, 14307), (1368, 13805), (1506, 12540), (1672, 11295), (1710, 11044), (1881, 10040), (1980, 9538), (2008, 9405), (2090, 9036), (2259, 8360), (2280, 8283), (2508, 7530), (2510, 7524), (2761, 6840), (3012, 6270), (3135, 6024), (3420, 5522), (3762, 5020), (3765, 5016), (3960, 4769), (4180, 4518)]