64280860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19963}}^1$

素因数の和:20002

約数の個数: 48

約数和(自身を含む): 160989696

約数和(自身を除く): 96708836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 19963, 39926, 79852, 99815, 139741, 199630, 279482, 399260, 459149, 558964, 698705, 918298, 1397410, 1836596, 2295745, 2794820, 3214043, 4591490, 6428086, 9182980, 12856172, 16070215, 32140430, 64280860]

約数ペア:

[(1, 64280860), (2, 32140430), (4, 16070215), (5, 12856172), (7, 9182980), (10, 6428086), (14, 4591490), (20, 3214043), (23, 2794820), (28, 2295745), (35, 1836596), (46, 1397410), (70, 918298), (92, 698705), (115, 558964), (140, 459149), (161, 399260), (230, 279482), (322, 199630), (460, 139741), (644, 99815), (805, 79852), (1610, 39926), (3220, 19963)]