207637820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{7907}}^1$

素因数の和:8030

約数の個数: 48

約数和(自身を含む): 474290208

約数和(自身を除く): 266652388

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 202, 260, 404, 505, 1010, 1313, 2020, 2626, 5252, 6565, 7907, 13130, 15814, 26260, 31628, 39535, 79070, 102791, 158140, 205582, 411164, 513955, 798607, 1027910, 1597214, 2055820, 3194428, 3993035, 7986070, 10381891, 15972140, 20763782, 41527564, 51909455, 103818910, 207637820]

約数ペア:

[(1, 207637820), (2, 103818910), (4, 51909455), (5, 41527564), (10, 20763782), (13, 15972140), (20, 10381891), (26, 7986070), (52, 3993035), (65, 3194428), (101, 2055820), (130, 1597214), (202, 1027910), (260, 798607), (404, 513955), (505, 411164), (1010, 205582), (1313, 158140), (2020, 102791), (2626, 79070), (5252, 39535), (6565, 31628), (7907, 26260), (13130, 15814)]