139156970

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{389}}^1\times {\mathrm{431}}^1$

素因数の和:910

約数の個数: 32

約数和(自身を含む): 254741760

約数和(自身を除く): 115584790

約数列:

[1, 2, 5, 10, 83, 166, 389, 415, 431, 778, 830, 862, 1945, 2155, 3890, 4310, 32287, 35773, 64574, 71546, 161435, 167659, 178865, 322870, 335318, 357730, 838295, 1676590, 13915697, 27831394, 69578485, 139156970]

約数ペア:

[(1, 139156970), (2, 69578485), (5, 27831394), (10, 13915697), (83, 1676590), (166, 838295), (389, 357730), (415, 335318), (431, 322870), (778, 178865), (830, 167659), (862, 161435), (1945, 71546), (2155, 64574), (3890, 35773), (4310, 32287)]