19989681120

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{243539}}^1$

素因数の和:243582

約数の個数: 192

約数和(自身を含む): 73646496000

約数和(自身を除く): 53656814880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 90, 95, 96, 108, 114, 120, 135, 144, 152, 160, 171, 180, 190, 216, 228, 240, 270, 285, 288, 304, 342, 360, 380, 432, 456, 480, 513, 540, 570, 608, 684, 720, 760, 855, 864, 912, 1026, 1080, 1140, 1368, 1440, 1520, 1710, 1824, 2052, 2160, 2280, 2565, 2736, 3040, 3420, 4104, 4320, 4560, 5130, 5472, 6840, 8208, 9120, 10260, 13680, 16416, 20520, 27360, 41040, 82080, 243539, 487078, 730617, 974156, 1217695, 1461234, 1948312, 2191851, 2435390, 2922468, 3653085, 3896624, 4383702, 4627241, 4870780, 5844936, 6575553, 7306170, 7793248, 8767404, 9254482, 9741560, 10959255, 11689872, 13151106, 13881723, 14612340, 17534808, 18508964, 19483120, 21918510, 23136205, 23379744, 26302212, 27763446, 29224680, 32877765, 35069616, 37017928, 38966240, 41645169, 43837020, 46272410, 52604424, 55526892, 58449360, 65755530, 69408615, 70139232, 74035856, 83290338, 87674040, 92544820, 105208848, 111053784, 116898720, 124935507, 131511060, 138817230, 148071712, 166580676, 175348080, 185089640, 208225845, 210417696, 222107568, 249871014, 263022120, 277634460, 333161352, 350696160, 370179280, 416451690, 444215136, 499742028, 526044240, 555268920, 624677535, 666322704, 740358560, 832903380, 999484056, 1052088480, 1110537840, 1249355070, 1332645408, 1665806760, 1998968112, 2221075680, 2498710140, 3331613520, 3997936224, 4997420280, 6663227040, 9994840560, 19989681120]

約数ペア:

[(1, 19989681120), (2, 9994840560), (3, 6663227040), (4, 4997420280), (5, 3997936224), (6, 3331613520), (8, 2498710140), (9, 2221075680), (10, 1998968112), (12, 1665806760), (15, 1332645408), (16, 1249355070), (18, 1110537840), (19, 1052088480), (20, 999484056), (24, 832903380), (27, 740358560), (30, 666322704), (32, 624677535), (36, 555268920), (38, 526044240), (40, 499742028), (45, 444215136), (48, 416451690), (54, 370179280), (57, 350696160), (60, 333161352), (72, 277634460), (76, 263022120), (80, 249871014), (90, 222107568), (95, 210417696), (96, 208225845), (108, 185089640), (114, 175348080), (120, 166580676), (135, 148071712), (144, 138817230), (152, 131511060), (160, 124935507), (171, 116898720), (180, 111053784), (190, 105208848), (216, 92544820), (228, 87674040), (240, 83290338), (270, 74035856), (285, 70139232), (288, 69408615), (304, 65755530), (342, 58449360), (360, 55526892), (380, 52604424), (432, 46272410), (456, 43837020), (480, 41645169), (513, 38966240), (540, 37017928), (570, 35069616), (608, 32877765), (684, 29224680), (720, 27763446), (760, 26302212), (855, 23379744), (864, 23136205), (912, 21918510), (1026, 19483120), (1080, 18508964), (1140, 17534808), (1368, 14612340), (1440, 13881723), (1520, 13151106), (1710, 11689872), (1824, 10959255), (2052, 9741560), (2160, 9254482), (2280, 8767404), (2565, 7793248), (2736, 7306170), (3040, 6575553), (3420, 5844936), (4104, 4870780), (4320, 4627241), (4560, 4383702), (5130, 3896624), (5472, 3653085), (6840, 2922468), (8208, 2435390), (9120, 2191851), (10260, 1948312), (13680, 1461234), (16416, 1217695), (20520, 974156), (27360, 730617), (41040, 487078), (82080, 243539)]