128818456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{7417}}^1$

素因数の和:7603

約数の個数: 32

約数和(自身を含む): 261707040

約数和(自身を除く): 132888584

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 167, 334, 668, 1336, 2171, 4342, 7417, 8684, 14834, 17368, 29668, 59336, 96421, 192842, 385684, 771368, 1238639, 2477278, 4954556, 9909112, 16102307, 32204614, 64409228, 128818456]

約数ペア:

[(1, 128818456), (2, 64409228), (4, 32204614), (8, 16102307), (13, 9909112), (26, 4954556), (52, 2477278), (104, 1238639), (167, 771368), (334, 385684), (668, 192842), (1336, 96421), (2171, 59336), (4342, 29668), (7417, 17368), (8684, 14834)]