68881505

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 106868160

約数和(自身を除く): 37986655

約数列:

[1, 5, 7, 11, 35, 49, 55, 61, 77, 245, 305, 385, 419, 427, 539, 671, 2095, 2135, 2695, 2933, 2989, 3355, 4609, 4697, 14665, 14945, 20531, 23045, 23485, 25559, 32263, 32879, 102655, 127795, 161315, 164395, 178913, 225841, 281149, 894565, 1129205, 1252391, 1405745, 1968043, 6261955, 9840215, 13776301, 68881505]

約数ペア:

[(1, 68881505), (5, 13776301), (7, 9840215), (11, 6261955), (35, 1968043), (49, 1405745), (55, 1252391), (61, 1129205), (77, 894565), (245, 281149), (305, 225841), (385, 178913), (419, 164395), (427, 161315), (539, 127795), (671, 102655), (2095, 32879), (2135, 32263), (2695, 25559), (2933, 23485), (2989, 23045), (3355, 20531), (4609, 14945), (4697, 14665)]