28379715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1223}}^1$

素因数の和:1268

約数の個数: 64

約数和(自身を含む): 59222016

約数和(自身を除く): 30842301

約数列:

[1, 3, 5, 7, 13, 15, 17, 21, 35, 39, 51, 65, 85, 91, 105, 119, 195, 221, 255, 273, 357, 455, 595, 663, 1105, 1223, 1365, 1547, 1785, 3315, 3669, 4641, 6115, 7735, 8561, 15899, 18345, 20791, 23205, 25683, 42805, 47697, 62373, 79495, 103955, 111293, 128415, 145537, 238485, 270283, 311865, 333879, 436611, 556465, 727685, 810849, 1351415, 1669395, 1891981, 2183055, 4054245, 5675943, 9459905, 28379715]

約数ペア:

[(1, 28379715), (3, 9459905), (5, 5675943), (7, 4054245), (13, 2183055), (15, 1891981), (17, 1669395), (21, 1351415), (35, 810849), (39, 727685), (51, 556465), (65, 436611), (85, 333879), (91, 311865), (105, 270283), (119, 238485), (195, 145537), (221, 128415), (255, 111293), (273, 103955), (357, 79495), (455, 62373), (595, 47697), (663, 42805), (1105, 25683), (1223, 23205), (1365, 20791), (1547, 18345), (1785, 15899), (3315, 8561), (3669, 7735), (4641, 6115)]