20985030

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 144

約数和(自身を含む): 62741952

約数和(自身を除く): 41756922

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 41, 45, 47, 55, 66, 82, 90, 94, 99, 110, 121, 123, 141, 165, 198, 205, 235, 242, 246, 282, 330, 363, 369, 410, 423, 451, 470, 495, 517, 605, 615, 705, 726, 738, 846, 902, 990, 1034, 1089, 1210, 1230, 1353, 1410, 1551, 1815, 1845, 1927, 2115, 2178, 2255, 2585, 2706, 3102, 3630, 3690, 3854, 4059, 4230, 4510, 4653, 4961, 5170, 5445, 5687, 5781, 6765, 7755, 8118, 9306, 9635, 9922, 10890, 11374, 11562, 13530, 14883, 15510, 17061, 17343, 19270, 20295, 21197, 23265, 24805, 28435, 28905, 29766, 34122, 34686, 40590, 42394, 44649, 46530, 49610, 51183, 56870, 57810, 63591, 74415, 85305, 86715, 89298, 102366, 105985, 127182, 148830, 170610, 173430, 190773, 211970, 223245, 233167, 255915, 317955, 381546, 446490, 466334, 511830, 635910, 699501, 953865, 1165835, 1399002, 1907730, 2098503, 2331670, 3497505, 4197006, 6995010, 10492515, 20985030]

約数ペア:

[(1, 20985030), (2, 10492515), (3, 6995010), (5, 4197006), (6, 3497505), (9, 2331670), (10, 2098503), (11, 1907730), (15, 1399002), (18, 1165835), (22, 953865), (30, 699501), (33, 635910), (41, 511830), (45, 466334), (47, 446490), (55, 381546), (66, 317955), (82, 255915), (90, 233167), (94, 223245), (99, 211970), (110, 190773), (121, 173430), (123, 170610), (141, 148830), (165, 127182), (198, 105985), (205, 102366), (235, 89298), (242, 86715), (246, 85305), (282, 74415), (330, 63591), (363, 57810), (369, 56870), (410, 51183), (423, 49610), (451, 46530), (470, 44649), (495, 42394), (517, 40590), (605, 34686), (615, 34122), (705, 29766), (726, 28905), (738, 28435), (846, 24805), (902, 23265), (990, 21197), (1034, 20295), (1089, 19270), (1210, 17343), (1230, 17061), (1353, 15510), (1410, 14883), (1551, 13530), (1815, 11562), (1845, 11374), (1927, 10890), (2115, 9922), (2178, 9635), (2255, 9306), (2585, 8118), (2706, 7755), (3102, 6765), (3630, 5781), (3690, 5687), (3854, 5445), (4059, 5170), (4230, 4961), (4510, 4653)]