287012404

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2083}}^1$

素因数の和:2157

約数の個数: 72

約数和(自身を含む): 631952160

約数和(自身を除く): 344939756

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 49, 74, 76, 98, 133, 148, 196, 259, 266, 518, 532, 703, 931, 1036, 1406, 1813, 1862, 2083, 2812, 3626, 3724, 4166, 4921, 7252, 8332, 9842, 14581, 19684, 29162, 34447, 39577, 58324, 68894, 77071, 79154, 102067, 137788, 154142, 158308, 204134, 277039, 308284, 408268, 539497, 554078, 1078994, 1108156, 1464349, 1939273, 2157988, 2928698, 3776479, 3878546, 5857396, 7552958, 7757092, 10250443, 15105916, 20500886, 41001772, 71753101, 143506202, 287012404]

約数ペア:

[(1, 287012404), (2, 143506202), (4, 71753101), (7, 41001772), (14, 20500886), (19, 15105916), (28, 10250443), (37, 7757092), (38, 7552958), (49, 5857396), (74, 3878546), (76, 3776479), (98, 2928698), (133, 2157988), (148, 1939273), (196, 1464349), (259, 1108156), (266, 1078994), (518, 554078), (532, 539497), (703, 408268), (931, 308284), (1036, 277039), (1406, 204134), (1813, 158308), (1862, 154142), (2083, 137788), (2812, 102067), (3626, 79154), (3724, 77071), (4166, 68894), (4921, 58324), (7252, 39577), (8332, 34447), (9842, 29162), (14581, 19684)]