9989705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 13996800

約数和(自身を除く): 4007095

約数列:

[1, 5, 11, 23, 53, 55, 115, 149, 253, 265, 583, 745, 1219, 1265, 1639, 2915, 3427, 6095, 7897, 8195, 13409, 17135, 37697, 39485, 67045, 86867, 181631, 188485, 434335, 908155, 1997941, 9989705]

約数ペア:

[(1, 9989705), (5, 1997941), (11, 908155), (23, 434335), (53, 188485), (55, 181631), (115, 86867), (149, 67045), (253, 39485), (265, 37697), (583, 17135), (745, 13409), (1219, 8195), (1265, 7897), (1639, 6095), (2915, 3427)]