164469725

素因数分解:

$5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 252412416

約数和(自身を除く): 87942691

約数列:

[1, 5, 7, 25, 31, 35, 49, 61, 71, 155, 175, 217, 245, 305, 355, 427, 497, 775, 1085, 1225, 1519, 1525, 1775, 1891, 2135, 2201, 2485, 2989, 3479, 4331, 5425, 7595, 9455, 10675, 11005, 12425, 13237, 14945, 15407, 17395, 21655, 30317, 37975, 47275, 55025, 66185, 74725, 77035, 86975, 92659, 107849, 108275, 134261, 151585, 212219, 330925, 385175, 463295, 539245, 671305, 757925, 939827, 1061095, 2316475, 2696225, 3356525, 4699135, 5305475, 6578789, 23495675, 32893945, 164469725]

約数ペア:

[(1, 164469725), (5, 32893945), (7, 23495675), (25, 6578789), (31, 5305475), (35, 4699135), (49, 3356525), (61, 2696225), (71, 2316475), (155, 1061095), (175, 939827), (217, 757925), (245, 671305), (305, 539245), (355, 463295), (427, 385175), (497, 330925), (775, 212219), (1085, 151585), (1225, 134261), (1519, 108275), (1525, 107849), (1775, 92659), (1891, 86975), (2135, 77035), (2201, 74725), (2485, 66185), (2989, 55025), (3479, 47275), (4331, 37975), (5425, 30317), (7595, 21655), (9455, 17395), (10675, 15407), (11005, 14945), (12425, 13237)]