28009268

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{163}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 62983872

約数和(自身を除く): 34974604

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 163, 238, 266, 323, 326, 361, 476, 532, 646, 652, 722, 1141, 1292, 1444, 2261, 2282, 2527, 2771, 3097, 4522, 4564, 5054, 5542, 6137, 6194, 9044, 10108, 11084, 12274, 12388, 19397, 21679, 24548, 38794, 42959, 43358, 52649, 58843, 77588, 85918, 86716, 105298, 117686, 171836, 210596, 235372, 368543, 411901, 737086, 823802, 1000331, 1474172, 1647604, 2000662, 4001324, 7002317, 14004634, 28009268]

約数ペア:

[(1, 28009268), (2, 14004634), (4, 7002317), (7, 4001324), (14, 2000662), (17, 1647604), (19, 1474172), (28, 1000331), (34, 823802), (38, 737086), (68, 411901), (76, 368543), (119, 235372), (133, 210596), (163, 171836), (238, 117686), (266, 105298), (323, 86716), (326, 85918), (361, 77588), (476, 58843), (532, 52649), (646, 43358), (652, 42959), (722, 38794), (1141, 24548), (1292, 21679), (1444, 19397), (2261, 12388), (2282, 12274), (2527, 11084), (2771, 10108), (3097, 9044), (4522, 6194), (4564, 6137), (5054, 5542)]