128561145

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{1951}}^1$

素因数の和:2173

約数の個数: 32

約数和(自身を含む): 215875584

約数和(自身を除く): 87314439

約数列:

[1, 3, 5, 15, 23, 69, 115, 191, 345, 573, 955, 1951, 2865, 4393, 5853, 9755, 13179, 21965, 29265, 44873, 65895, 134619, 224365, 372641, 673095, 1117923, 1863205, 5589615, 8570743, 25712229, 42853715, 128561145]

約数ペア:

[(1, 128561145), (3, 42853715), (5, 25712229), (15, 8570743), (23, 5589615), (69, 1863205), (115, 1117923), (191, 673095), (345, 372641), (573, 224365), (955, 134619), (1951, 65895), (2865, 44873), (4393, 29265), (5853, 21965), (9755, 13179)]