218361520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:591

約数の個数: 120

約数和(自身を含む): 568570752

約数和(自身を除く): 350209232

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 169, 208, 248, 260, 310, 338, 403, 496, 520, 521, 620, 676, 806, 845, 1040, 1042, 1240, 1352, 1612, 1690, 2015, 2084, 2480, 2605, 2704, 3224, 3380, 4030, 4168, 5210, 5239, 6448, 6760, 6773, 8060, 8336, 10420, 10478, 13520, 13546, 16120, 16151, 20840, 20956, 26195, 27092, 32240, 32302, 33865, 41680, 41912, 52390, 54184, 64604, 67730, 80755, 83824, 88049, 104780, 108368, 129208, 135460, 161510, 176098, 209560, 209963, 258416, 270920, 323020, 352196, 419120, 419926, 440245, 541840, 646040, 704392, 839852, 880490, 1049815, 1292080, 1408784, 1679704, 1760980, 2099630, 2729519, 3359408, 3521960, 4199260, 5459038, 7043920, 8398520, 10918076, 13647595, 16797040, 21836152, 27295190, 43672304, 54590380, 109180760, 218361520]

約数ペア:

[(1, 218361520), (2, 109180760), (4, 54590380), (5, 43672304), (8, 27295190), (10, 21836152), (13, 16797040), (16, 13647595), (20, 10918076), (26, 8398520), (31, 7043920), (40, 5459038), (52, 4199260), (62, 3521960), (65, 3359408), (80, 2729519), (104, 2099630), (124, 1760980), (130, 1679704), (155, 1408784), (169, 1292080), (208, 1049815), (248, 880490), (260, 839852), (310, 704392), (338, 646040), (403, 541840), (496, 440245), (520, 419926), (521, 419120), (620, 352196), (676, 323020), (806, 270920), (845, 258416), (1040, 209963), (1042, 209560), (1240, 176098), (1352, 161510), (1612, 135460), (1690, 129208), (2015, 108368), (2084, 104780), (2480, 88049), (2605, 83824), (2704, 80755), (3224, 67730), (3380, 64604), (4030, 54184), (4168, 52390), (5210, 41912), (5239, 41680), (6448, 33865), (6760, 32302), (6773, 32240), (8060, 27092), (8336, 26195), (10420, 20956), (10478, 20840), (13520, 16151), (13546, 16120)]