70720208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7907}}^1$

素因数の和:7971

約数の個数: 40

約数和(自身を含む): 151011168

約数和(自身を除く): 80290960

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2236, 4472, 7907, 8944, 15814, 31628, 63256, 102791, 126512, 205582, 340001, 411164, 680002, 822328, 1360004, 1644656, 2720008, 4420013, 5440016, 8840026, 17680052, 35360104, 70720208]

約数ペア:

[(1, 70720208), (2, 35360104), (4, 17680052), (8, 8840026), (13, 5440016), (16, 4420013), (26, 2720008), (43, 1644656), (52, 1360004), (86, 822328), (104, 680002), (172, 411164), (208, 340001), (344, 205582), (559, 126512), (688, 102791), (1118, 63256), (2236, 31628), (4472, 15814), (7907, 8944)]