28771428

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{167}}^1\times {\mathrm{293}}^1$

素因数の和:481

約数の個数: 72

約数和(自身を含む): 78829632

約数和(自身を除く): 50058204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 167, 196, 293, 294, 334, 501, 586, 588, 668, 879, 1002, 1169, 1172, 1758, 2004, 2051, 2338, 3507, 3516, 4102, 4676, 6153, 7014, 8183, 8204, 12306, 14028, 14357, 16366, 24549, 24612, 28714, 32732, 43071, 48931, 49098, 57428, 86142, 97862, 98196, 146793, 172284, 195724, 293586, 342517, 587172, 685034, 1027551, 1370068, 2055102, 2397619, 4110204, 4795238, 7192857, 9590476, 14385714, 28771428]

約数ペア:

[(1, 28771428), (2, 14385714), (3, 9590476), (4, 7192857), (6, 4795238), (7, 4110204), (12, 2397619), (14, 2055102), (21, 1370068), (28, 1027551), (42, 685034), (49, 587172), (84, 342517), (98, 293586), (147, 195724), (167, 172284), (196, 146793), (293, 98196), (294, 97862), (334, 86142), (501, 57428), (586, 49098), (588, 48931), (668, 43071), (879, 32732), (1002, 28714), (1169, 24612), (1172, 24549), (1758, 16366), (2004, 14357), (2051, 14028), (2338, 12306), (3507, 8204), (3516, 8183), (4102, 7014), (4676, 6153)]