28554680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:229

約数の個数: 128

約数和(自身を含む): 81838080

約数和(自身を除く): 53283400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 73, 77, 88, 110, 127, 140, 146, 154, 220, 254, 280, 292, 308, 365, 385, 440, 508, 511, 584, 616, 635, 730, 770, 803, 889, 1016, 1022, 1270, 1397, 1460, 1540, 1606, 1778, 2044, 2540, 2555, 2794, 2920, 3080, 3212, 3556, 4015, 4088, 4445, 5080, 5110, 5588, 5621, 6424, 6985, 7112, 8030, 8890, 9271, 9779, 10220, 11176, 11242, 13970, 16060, 17780, 18542, 19558, 20440, 22484, 27940, 28105, 32120, 35560, 37084, 39116, 44968, 46355, 48895, 55880, 56210, 64897, 74168, 78232, 92710, 97790, 101981, 112420, 129794, 185420, 195580, 203962, 224840, 259588, 324485, 370840, 391160, 407924, 509905, 519176, 648970, 713867, 815848, 1019810, 1297940, 1427734, 2039620, 2595880, 2855468, 3569335, 4079240, 5710936, 7138670, 14277340, 28554680]

約数ペア:

[(1, 28554680), (2, 14277340), (4, 7138670), (5, 5710936), (7, 4079240), (8, 3569335), (10, 2855468), (11, 2595880), (14, 2039620), (20, 1427734), (22, 1297940), (28, 1019810), (35, 815848), (40, 713867), (44, 648970), (55, 519176), (56, 509905), (70, 407924), (73, 391160), (77, 370840), (88, 324485), (110, 259588), (127, 224840), (140, 203962), (146, 195580), (154, 185420), (220, 129794), (254, 112420), (280, 101981), (292, 97790), (308, 92710), (365, 78232), (385, 74168), (440, 64897), (508, 56210), (511, 55880), (584, 48895), (616, 46355), (635, 44968), (730, 39116), (770, 37084), (803, 35560), (889, 32120), (1016, 28105), (1022, 27940), (1270, 22484), (1397, 20440), (1460, 19558), (1540, 18542), (1606, 17780), (1778, 16060), (2044, 13970), (2540, 11242), (2555, 11176), (2794, 10220), (2920, 9779), (3080, 9271), (3212, 8890), (3556, 8030), (4015, 7112), (4088, 6985), (4445, 6424), (5080, 5621), (5110, 5588)]