78978670

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{389}}^1$

素因数の和:732

約数の個数: 32

約数和(自身を含む): 144892800

約数和(自身を除く): 65914130

約数列:

[1, 2, 5, 10, 79, 158, 257, 389, 395, 514, 778, 790, 1285, 1945, 2570, 3890, 20303, 30731, 40606, 61462, 99973, 101515, 153655, 199946, 203030, 307310, 499865, 999730, 7897867, 15795734, 39489335, 78978670]

約数ペア:

[(1, 78978670), (2, 39489335), (5, 15795734), (10, 7897867), (79, 999730), (158, 499865), (257, 307310), (389, 203030), (395, 199946), (514, 153655), (778, 101515), (790, 99973), (1285, 61462), (1945, 40606), (2570, 30731), (3890, 20303)]