28253456

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:133

約数の個数: 160

約数和(自身を含む): 77137920

約数和(自身を除く): 48884464

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 19, 22, 28, 34, 38, 44, 56, 68, 71, 76, 77, 88, 112, 119, 133, 136, 142, 152, 154, 176, 187, 209, 238, 266, 272, 284, 304, 308, 323, 374, 418, 476, 497, 532, 568, 616, 646, 748, 781, 836, 952, 994, 1064, 1136, 1207, 1232, 1292, 1309, 1349, 1463, 1496, 1562, 1672, 1904, 1988, 2128, 2261, 2414, 2584, 2618, 2698, 2926, 2992, 3124, 3344, 3553, 3976, 4522, 4828, 5168, 5236, 5396, 5467, 5852, 6248, 7106, 7952, 8449, 9044, 9443, 9656, 10472, 10792, 10934, 11704, 12496, 13277, 14212, 14839, 16898, 18088, 18886, 19312, 20944, 21584, 21868, 22933, 23408, 24871, 26554, 28424, 29678, 33796, 36176, 37772, 43736, 45866, 49742, 53108, 56848, 59356, 67592, 75544, 87472, 91732, 92939, 99484, 103873, 106216, 118712, 135184, 151088, 160531, 183464, 185878, 198968, 207746, 212432, 237424, 252263, 321062, 366928, 371756, 397936, 415492, 504526, 642124, 743512, 830984, 1009052, 1284248, 1487024, 1661968, 1765841, 2018104, 2568496, 3531682, 4036208, 7063364, 14126728, 28253456]

約数ペア:

[(1, 28253456), (2, 14126728), (4, 7063364), (7, 4036208), (8, 3531682), (11, 2568496), (14, 2018104), (16, 1765841), (17, 1661968), (19, 1487024), (22, 1284248), (28, 1009052), (34, 830984), (38, 743512), (44, 642124), (56, 504526), (68, 415492), (71, 397936), (76, 371756), (77, 366928), (88, 321062), (112, 252263), (119, 237424), (133, 212432), (136, 207746), (142, 198968), (152, 185878), (154, 183464), (176, 160531), (187, 151088), (209, 135184), (238, 118712), (266, 106216), (272, 103873), (284, 99484), (304, 92939), (308, 91732), (323, 87472), (374, 75544), (418, 67592), (476, 59356), (497, 56848), (532, 53108), (568, 49742), (616, 45866), (646, 43736), (748, 37772), (781, 36176), (836, 33796), (952, 29678), (994, 28424), (1064, 26554), (1136, 24871), (1207, 23408), (1232, 22933), (1292, 21868), (1309, 21584), (1349, 20944), (1463, 19312), (1496, 18886), (1562, 18088), (1672, 16898), (1904, 14839), (1988, 14212), (2128, 13277), (2261, 12496), (2414, 11704), (2584, 10934), (2618, 10792), (2698, 10472), (2926, 9656), (2992, 9443), (3124, 9044), (3344, 8449), (3553, 7952), (3976, 7106), (4522, 6248), (4828, 5852), (5168, 5467), (5236, 5396)]