81438296

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{2131}}^1$

素因数の和:2435

約数の個数: 32

約数和(自身を含む): 162330480

約数和(自身を除く): 80892184

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 281, 562, 1124, 2131, 2248, 4262, 4777, 8524, 9554, 17048, 19108, 36227, 38216, 72454, 144908, 289816, 598811, 1197622, 2395244, 4790488, 10179787, 20359574, 40719148, 81438296]

約数ペア:

[(1, 81438296), (2, 40719148), (4, 20359574), (8, 10179787), (17, 4790488), (34, 2395244), (68, 1197622), (136, 598811), (281, 289816), (562, 144908), (1124, 72454), (2131, 38216), (2248, 36227), (4262, 19108), (4777, 17048), (8524, 9554)]