20803104

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{607}}^1$

素因数の和:647

約数の個数: 144

約数和(自身を含む): 71705088

約数和(自身を除く): 50901984

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 32, 34, 36, 42, 48, 51, 56, 63, 68, 72, 84, 96, 102, 112, 119, 126, 136, 144, 153, 168, 204, 224, 238, 252, 272, 288, 306, 336, 357, 408, 476, 504, 544, 607, 612, 672, 714, 816, 952, 1008, 1071, 1214, 1224, 1428, 1632, 1821, 1904, 2016, 2142, 2428, 2448, 2856, 3642, 3808, 4249, 4284, 4856, 4896, 5463, 5712, 7284, 8498, 8568, 9712, 10319, 10926, 11424, 12747, 14568, 16996, 17136, 19424, 20638, 21852, 25494, 29136, 30957, 33992, 34272, 38241, 41276, 43704, 50988, 58272, 61914, 67984, 72233, 76482, 82552, 87408, 92871, 101976, 123828, 135968, 144466, 152964, 165104, 174816, 185742, 203952, 216699, 247656, 288932, 305928, 330208, 371484, 407904, 433398, 495312, 577864, 611856, 650097, 742968, 866796, 990624, 1155728, 1223712, 1300194, 1485936, 1733592, 2311456, 2600388, 2971872, 3467184, 5200776, 6934368, 10401552, 20803104]

約数ペア:

[(1, 20803104), (2, 10401552), (3, 6934368), (4, 5200776), (6, 3467184), (7, 2971872), (8, 2600388), (9, 2311456), (12, 1733592), (14, 1485936), (16, 1300194), (17, 1223712), (18, 1155728), (21, 990624), (24, 866796), (28, 742968), (32, 650097), (34, 611856), (36, 577864), (42, 495312), (48, 433398), (51, 407904), (56, 371484), (63, 330208), (68, 305928), (72, 288932), (84, 247656), (96, 216699), (102, 203952), (112, 185742), (119, 174816), (126, 165104), (136, 152964), (144, 144466), (153, 135968), (168, 123828), (204, 101976), (224, 92871), (238, 87408), (252, 82552), (272, 76482), (288, 72233), (306, 67984), (336, 61914), (357, 58272), (408, 50988), (476, 43704), (504, 41276), (544, 38241), (607, 34272), (612, 33992), (672, 30957), (714, 29136), (816, 25494), (952, 21852), (1008, 20638), (1071, 19424), (1214, 17136), (1224, 16996), (1428, 14568), (1632, 12747), (1821, 11424), (1904, 10926), (2016, 10319), (2142, 9712), (2428, 8568), (2448, 8498), (2856, 7284), (3642, 5712), (3808, 5463), (4249, 4896), (4284, 4856)]