28528045

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^3\times {\mathrm{53}}^1$

素因数の和:111

約数の個数: 48

約数和(自身を含む): 43953840

約数和(自身を除く): 15425795

約数列:

[1, 5, 7, 13, 35, 49, 53, 65, 91, 169, 245, 265, 371, 455, 637, 689, 845, 1183, 1855, 2197, 2597, 3185, 3445, 4823, 5915, 8281, 8957, 10985, 12985, 15379, 24115, 33761, 41405, 44785, 62699, 76895, 107653, 116441, 168805, 313495, 438893, 538265, 582205, 815087, 2194465, 4075435, 5705609, 28528045]

約数ペア:

[(1, 28528045), (5, 5705609), (7, 4075435), (13, 2194465), (35, 815087), (49, 582205), (53, 538265), (65, 438893), (91, 313495), (169, 168805), (245, 116441), (265, 107653), (371, 76895), (455, 62699), (637, 44785), (689, 41405), (845, 33761), (1183, 24115), (1855, 15379), (2197, 12985), (2597, 10985), (3185, 8957), (3445, 8281), (4823, 5915)]