38949820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21401}}^1$

素因数の和:21430

約数の個数: 48

約数和(自身を含む): 100675008

約数和(自身を除く): 61725188

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 21401, 42802, 85604, 107005, 149807, 214010, 278213, 299614, 428020, 556426, 599228, 749035, 1112852, 1391065, 1498070, 1947491, 2782130, 2996140, 3894982, 5564260, 7789964, 9737455, 19474910, 38949820]

約数ペア:

[(1, 38949820), (2, 19474910), (4, 9737455), (5, 7789964), (7, 5564260), (10, 3894982), (13, 2996140), (14, 2782130), (20, 1947491), (26, 1498070), (28, 1391065), (35, 1112852), (52, 749035), (65, 599228), (70, 556426), (91, 428020), (130, 299614), (140, 278213), (182, 214010), (260, 149807), (364, 107005), (455, 85604), (910, 42802), (1820, 21401)]