261918580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{3209}}^1$

素因数の和:3289

約数の個数: 96

約数和(自身を含む): 698906880

約数和(自身を除く): 436988300

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 53, 55, 70, 77, 106, 110, 140, 154, 212, 220, 265, 308, 371, 385, 530, 583, 742, 770, 1060, 1166, 1484, 1540, 1855, 2332, 2915, 3209, 3710, 4081, 5830, 6418, 7420, 8162, 11660, 12836, 16045, 16324, 20405, 22463, 32090, 35299, 40810, 44926, 64180, 70598, 81620, 89852, 112315, 141196, 170077, 176495, 224630, 247093, 340154, 352990, 449260, 494186, 680308, 705980, 850385, 988372, 1190539, 1235465, 1700770, 1870847, 2381078, 2470930, 3401540, 3741694, 4762156, 4941860, 5952695, 7483388, 9354235, 11905390, 13095929, 18708470, 23810780, 26191858, 37416940, 52383716, 65479645, 130959290, 261918580]

約数ペア:

[(1, 261918580), (2, 130959290), (4, 65479645), (5, 52383716), (7, 37416940), (10, 26191858), (11, 23810780), (14, 18708470), (20, 13095929), (22, 11905390), (28, 9354235), (35, 7483388), (44, 5952695), (53, 4941860), (55, 4762156), (70, 3741694), (77, 3401540), (106, 2470930), (110, 2381078), (140, 1870847), (154, 1700770), (212, 1235465), (220, 1190539), (265, 988372), (308, 850385), (371, 705980), (385, 680308), (530, 494186), (583, 449260), (742, 352990), (770, 340154), (1060, 247093), (1166, 224630), (1484, 176495), (1540, 170077), (1855, 141196), (2332, 112315), (2915, 89852), (3209, 81620), (3710, 70598), (4081, 64180), (5830, 44926), (6418, 40810), (7420, 35299), (8162, 32090), (11660, 22463), (12836, 20405), (16045, 16324)]