28149520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:237

約数の個数: 120

約数和(自身を含む): 78369984

約数和(自身を除く): 50220464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 49, 56, 70, 80, 86, 98, 112, 140, 167, 172, 196, 215, 245, 280, 301, 334, 344, 392, 430, 490, 560, 602, 668, 688, 784, 835, 860, 980, 1169, 1204, 1336, 1505, 1670, 1720, 1960, 2107, 2338, 2408, 2672, 3010, 3340, 3440, 3920, 4214, 4676, 4816, 5845, 6020, 6680, 7181, 8183, 8428, 9352, 10535, 11690, 12040, 13360, 14362, 16366, 16856, 18704, 21070, 23380, 24080, 28724, 32732, 33712, 35905, 40915, 42140, 46760, 50267, 57448, 65464, 71810, 81830, 84280, 93520, 100534, 114896, 130928, 143620, 163660, 168560, 201068, 251335, 287240, 327320, 351869, 402136, 502670, 574480, 654640, 703738, 804272, 1005340, 1407476, 1759345, 2010680, 2814952, 3518690, 4021360, 5629904, 7037380, 14074760, 28149520]

約数ペア:

[(1, 28149520), (2, 14074760), (4, 7037380), (5, 5629904), (7, 4021360), (8, 3518690), (10, 2814952), (14, 2010680), (16, 1759345), (20, 1407476), (28, 1005340), (35, 804272), (40, 703738), (43, 654640), (49, 574480), (56, 502670), (70, 402136), (80, 351869), (86, 327320), (98, 287240), (112, 251335), (140, 201068), (167, 168560), (172, 163660), (196, 143620), (215, 130928), (245, 114896), (280, 100534), (301, 93520), (334, 84280), (344, 81830), (392, 71810), (430, 65464), (490, 57448), (560, 50267), (602, 46760), (668, 42140), (688, 40915), (784, 35905), (835, 33712), (860, 32732), (980, 28724), (1169, 24080), (1204, 23380), (1336, 21070), (1505, 18704), (1670, 16856), (1720, 16366), (1960, 14362), (2107, 13360), (2338, 12040), (2408, 11690), (2672, 10535), (3010, 9352), (3340, 8428), (3440, 8183), (3920, 7181), (4214, 6680), (4676, 6020), (4816, 5845)]