28477428

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2549}}^1$

素因数の和:2589

約数の個数: 72

約数和(自身を含む): 81396000

約数和(自身を除く): 52918572

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 49, 57, 76, 84, 98, 114, 133, 147, 196, 228, 266, 294, 399, 532, 588, 798, 931, 1596, 1862, 2549, 2793, 3724, 5098, 5586, 7647, 10196, 11172, 15294, 17843, 30588, 35686, 48431, 53529, 71372, 96862, 107058, 124901, 145293, 193724, 214116, 249802, 290586, 339017, 374703, 499604, 581172, 678034, 749406, 1017051, 1356068, 1498812, 2034102, 2373119, 4068204, 4746238, 7119357, 9492476, 14238714, 28477428]

約数ペア:

[(1, 28477428), (2, 14238714), (3, 9492476), (4, 7119357), (6, 4746238), (7, 4068204), (12, 2373119), (14, 2034102), (19, 1498812), (21, 1356068), (28, 1017051), (38, 749406), (42, 678034), (49, 581172), (57, 499604), (76, 374703), (84, 339017), (98, 290586), (114, 249802), (133, 214116), (147, 193724), (196, 145293), (228, 124901), (266, 107058), (294, 96862), (399, 71372), (532, 53529), (588, 48431), (798, 35686), (931, 30588), (1596, 17843), (1862, 15294), (2549, 11172), (2793, 10196), (3724, 7647), (5098, 5586)]