20376180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:318

約数の個数: 144

約数和(自身を含む): 69346368

約数和(自身を除く): 48970188

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 41, 44, 45, 55, 60, 66, 82, 90, 99, 110, 123, 132, 164, 165, 180, 198, 205, 220, 246, 251, 330, 369, 396, 410, 451, 492, 495, 502, 615, 660, 738, 753, 820, 902, 990, 1004, 1230, 1255, 1353, 1476, 1506, 1804, 1845, 1980, 2255, 2259, 2460, 2510, 2706, 2761, 3012, 3690, 3765, 4059, 4510, 4518, 5020, 5412, 5522, 6765, 7380, 7530, 8118, 8283, 9020, 9036, 10291, 11044, 11295, 13530, 13805, 15060, 16236, 16566, 20295, 20582, 22590, 24849, 27060, 27610, 30873, 33132, 40590, 41164, 41415, 45180, 49698, 51455, 55220, 61746, 81180, 82830, 92619, 99396, 102910, 113201, 123492, 124245, 154365, 165660, 185238, 205820, 226402, 248490, 308730, 339603, 370476, 452804, 463095, 496980, 566005, 617460, 679206, 926190, 1018809, 1132010, 1358412, 1698015, 1852380, 2037618, 2264020, 3396030, 4075236, 5094045, 6792060, 10188090, 20376180]

約数ペア:

[(1, 20376180), (2, 10188090), (3, 6792060), (4, 5094045), (5, 4075236), (6, 3396030), (9, 2264020), (10, 2037618), (11, 1852380), (12, 1698015), (15, 1358412), (18, 1132010), (20, 1018809), (22, 926190), (30, 679206), (33, 617460), (36, 566005), (41, 496980), (44, 463095), (45, 452804), (55, 370476), (60, 339603), (66, 308730), (82, 248490), (90, 226402), (99, 205820), (110, 185238), (123, 165660), (132, 154365), (164, 124245), (165, 123492), (180, 113201), (198, 102910), (205, 99396), (220, 92619), (246, 82830), (251, 81180), (330, 61746), (369, 55220), (396, 51455), (410, 49698), (451, 45180), (492, 41415), (495, 41164), (502, 40590), (615, 33132), (660, 30873), (738, 27610), (753, 27060), (820, 24849), (902, 22590), (990, 20582), (1004, 20295), (1230, 16566), (1255, 16236), (1353, 15060), (1476, 13805), (1506, 13530), (1804, 11295), (1845, 11044), (1980, 10291), (2255, 9036), (2259, 9020), (2460, 8283), (2510, 8118), (2706, 7530), (2761, 7380), (3012, 6765), (3690, 5522), (3765, 5412), (4059, 5020), (4510, 4518)]