261920880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27983}}^1$

素因数の和:28015

約数の個数: 120

約数和(自身を含む): 947314368

約数和(自身を除く): 685393488

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3120, 4680, 9360, 27983, 55966, 83949, 111932, 139915, 167898, 223864, 251847, 279830, 335796, 363779, 419745, 447728, 503694, 559660, 671592, 727558, 839490, 1007388, 1091337, 1119320, 1259235, 1343184, 1455116, 1678980, 1818895, 2014776, 2182674, 2238640, 2518470, 2910232, 3274011, 3357960, 3637790, 4029552, 4365348, 5036940, 5456685, 5820464, 6548022, 6715920, 7275580, 8730696, 10073880, 10913370, 13096044, 14551160, 16370055, 17461392, 20147760, 21826740, 26192088, 29102320, 32740110, 43653480, 52384176, 65480220, 87306960, 130960440, 261920880]

約数ペア:

[(1, 261920880), (2, 130960440), (3, 87306960), (4, 65480220), (5, 52384176), (6, 43653480), (8, 32740110), (9, 29102320), (10, 26192088), (12, 21826740), (13, 20147760), (15, 17461392), (16, 16370055), (18, 14551160), (20, 13096044), (24, 10913370), (26, 10073880), (30, 8730696), (36, 7275580), (39, 6715920), (40, 6548022), (45, 5820464), (48, 5456685), (52, 5036940), (60, 4365348), (65, 4029552), (72, 3637790), (78, 3357960), (80, 3274011), (90, 2910232), (104, 2518470), (117, 2238640), (120, 2182674), (130, 2014776), (144, 1818895), (156, 1678980), (180, 1455116), (195, 1343184), (208, 1259235), (234, 1119320), (240, 1091337), (260, 1007388), (312, 839490), (360, 727558), (390, 671592), (468, 559660), (520, 503694), (585, 447728), (624, 419745), (720, 363779), (780, 335796), (936, 279830), (1040, 251847), (1170, 223864), (1560, 167898), (1872, 139915), (2340, 111932), (3120, 83949), (4680, 55966), (9360, 27983)]