305508385

素因数分解:

$5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 469324800

約数和(自身を除く): 163816415

約数列:

[1, 5, 7, 13, 35, 49, 65, 71, 91, 193, 245, 343, 355, 455, 497, 637, 923, 965, 1351, 1715, 2485, 2509, 3185, 3479, 4459, 4615, 6461, 6755, 9457, 12545, 13703, 17395, 17563, 22295, 24353, 32305, 45227, 47285, 66199, 68515, 87815, 95921, 121765, 122941, 178139, 226135, 316589, 330995, 479605, 614705, 671447, 860587, 890695, 1246973, 1582945, 3357235, 4302935, 4700129, 6234865, 8728811, 23500645, 43644055, 61101677, 305508385]

約数ペア:

[(1, 305508385), (5, 61101677), (7, 43644055), (13, 23500645), (35, 8728811), (49, 6234865), (65, 4700129), (71, 4302935), (91, 3357235), (193, 1582945), (245, 1246973), (343, 890695), (355, 860587), (455, 671447), (497, 614705), (637, 479605), (923, 330995), (965, 316589), (1351, 226135), (1715, 178139), (2485, 122941), (2509, 121765), (3185, 95921), (3479, 87815), (4459, 68515), (4615, 66199), (6461, 47285), (6755, 45227), (9457, 32305), (12545, 24353), (13703, 22295), (17395, 17563)]