20455354780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{10267}}^1$

素因数の和:10416

約数の個数: 144

約数和(自身を含む): 53096238720

約数和(自身を除く): 32640883940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 107, 133, 140, 190, 196, 214, 245, 266, 380, 428, 490, 532, 535, 665, 749, 931, 980, 1070, 1330, 1498, 1862, 2033, 2140, 2660, 2996, 3724, 3745, 4066, 4655, 5243, 7490, 8132, 9310, 10165, 10267, 10486, 14231, 14980, 18620, 20330, 20534, 20972, 26215, 28462, 40660, 41068, 51335, 52430, 56924, 71155, 71869, 99617, 102670, 104860, 142310, 143738, 195073, 199234, 205340, 284620, 287476, 359345, 390146, 398468, 498085, 503083, 718690, 780292, 975365, 996170, 1006166, 1098569, 1365511, 1437380, 1950730, 1992340, 2012332, 2197138, 2515415, 2731022, 3901460, 4394276, 5030830, 5462044, 5492845, 6827555, 7689983, 9558577, 10061660, 10985690, 13655110, 15379966, 19117154, 20872811, 21971380, 27310220, 30759932, 38234308, 38449915, 41745622, 47792885, 53829881, 76899830, 83491244, 95585770, 104364055, 107659762, 146109677, 153799660, 191171540, 208728110, 215319524, 269149405, 292219354, 417456220, 538298810, 584438708, 730548385, 1022767739, 1076597620, 1461096770, 2045535478, 2922193540, 4091070956, 5113838695, 10227677390, 20455354780]

約数ペア:

[(1, 20455354780), (2, 10227677390), (4, 5113838695), (5, 4091070956), (7, 2922193540), (10, 2045535478), (14, 1461096770), (19, 1076597620), (20, 1022767739), (28, 730548385), (35, 584438708), (38, 538298810), (49, 417456220), (70, 292219354), (76, 269149405), (95, 215319524), (98, 208728110), (107, 191171540), (133, 153799660), (140, 146109677), (190, 107659762), (196, 104364055), (214, 95585770), (245, 83491244), (266, 76899830), (380, 53829881), (428, 47792885), (490, 41745622), (532, 38449915), (535, 38234308), (665, 30759932), (749, 27310220), (931, 21971380), (980, 20872811), (1070, 19117154), (1330, 15379966), (1498, 13655110), (1862, 10985690), (2033, 10061660), (2140, 9558577), (2660, 7689983), (2996, 6827555), (3724, 5492845), (3745, 5462044), (4066, 5030830), (4655, 4394276), (5243, 3901460), (7490, 2731022), (8132, 2515415), (9310, 2197138), (10165, 2012332), (10267, 1992340), (10486, 1950730), (14231, 1437380), (14980, 1365511), (18620, 1098569), (20330, 1006166), (20534, 996170), (20972, 975365), (26215, 780292), (28462, 718690), (40660, 503083), (41068, 498085), (51335, 398468), (52430, 390146), (56924, 359345), (71155, 287476), (71869, 284620), (99617, 205340), (102670, 199234), (104860, 195073), (142310, 143738)]