218361880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 128

約数和(自身を含む): 563112000

約数和(自身を除く): 344750120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 109, 110, 116, 145, 157, 218, 220, 232, 290, 314, 319, 436, 440, 545, 580, 628, 638, 785, 872, 1090, 1160, 1199, 1256, 1276, 1570, 1595, 1727, 2180, 2398, 2552, 3140, 3161, 3190, 3454, 4360, 4553, 4796, 5995, 6280, 6322, 6380, 6908, 8635, 9106, 9592, 11990, 12644, 12760, 13816, 15805, 17113, 17270, 18212, 22765, 23980, 25288, 31610, 34226, 34540, 34771, 36424, 45530, 47960, 50083, 63220, 68452, 69080, 69542, 85565, 91060, 100166, 126440, 136904, 139084, 171130, 173855, 182120, 188243, 200332, 250415, 278168, 342260, 347710, 376486, 400664, 496277, 500830, 684520, 695420, 752972, 941215, 992554, 1001660, 1390840, 1505944, 1882430, 1985108, 2003320, 2481385, 3764860, 3970216, 4962770, 5459047, 7529720, 9925540, 10918094, 19851080, 21836188, 27295235, 43672376, 54590470, 109180940, 218361880]

約数ペア:

[(1, 218361880), (2, 109180940), (4, 54590470), (5, 43672376), (8, 27295235), (10, 21836188), (11, 19851080), (20, 10918094), (22, 9925540), (29, 7529720), (40, 5459047), (44, 4962770), (55, 3970216), (58, 3764860), (88, 2481385), (109, 2003320), (110, 1985108), (116, 1882430), (145, 1505944), (157, 1390840), (218, 1001660), (220, 992554), (232, 941215), (290, 752972), (314, 695420), (319, 684520), (436, 500830), (440, 496277), (545, 400664), (580, 376486), (628, 347710), (638, 342260), (785, 278168), (872, 250415), (1090, 200332), (1160, 188243), (1199, 182120), (1256, 173855), (1276, 171130), (1570, 139084), (1595, 136904), (1727, 126440), (2180, 100166), (2398, 91060), (2552, 85565), (3140, 69542), (3161, 69080), (3190, 68452), (3454, 63220), (4360, 50083), (4553, 47960), (4796, 45530), (5995, 36424), (6280, 34771), (6322, 34540), (6380, 34226), (6908, 31610), (8635, 25288), (9106, 23980), (9592, 22765), (11990, 18212), (12644, 17270), (12760, 17113), (13816, 15805)]