28643412

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:301

約数の個数: 96

約数和(自身を含む): 81607680

約数和(自身を除く): 52964268

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 84, 114, 131, 133, 137, 228, 262, 266, 274, 393, 399, 411, 524, 532, 548, 786, 798, 822, 917, 959, 1572, 1596, 1644, 1834, 1918, 2489, 2603, 2751, 2877, 3668, 3836, 4978, 5206, 5502, 5754, 7467, 7809, 9956, 10412, 11004, 11508, 14934, 15618, 17423, 17947, 18221, 29868, 31236, 34846, 35894, 36442, 52269, 53841, 54663, 69692, 71788, 72884, 104538, 107682, 109326, 125629, 209076, 215364, 218652, 251258, 340993, 376887, 502516, 681986, 753774, 1022979, 1363972, 1507548, 2045958, 2386951, 4091916, 4773902, 7160853, 9547804, 14321706, 28643412]

約数ペア:

[(1, 28643412), (2, 14321706), (3, 9547804), (4, 7160853), (6, 4773902), (7, 4091916), (12, 2386951), (14, 2045958), (19, 1507548), (21, 1363972), (28, 1022979), (38, 753774), (42, 681986), (57, 502516), (76, 376887), (84, 340993), (114, 251258), (131, 218652), (133, 215364), (137, 209076), (228, 125629), (262, 109326), (266, 107682), (274, 104538), (393, 72884), (399, 71788), (411, 69692), (524, 54663), (532, 53841), (548, 52269), (786, 36442), (798, 35894), (822, 34846), (917, 31236), (959, 29868), (1572, 18221), (1596, 17947), (1644, 17423), (1834, 15618), (1918, 14934), (2489, 11508), (2603, 11004), (2751, 10412), (2877, 9956), (3668, 7809), (3836, 7467), (4978, 5754), (5206, 5502)]