131800840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{106291}}^1$

素因数の和:106333

約数の個数: 32

約数和(自身を含む): 306120960

約数和(自身を除く): 174320120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 106291, 212582, 425164, 531455, 850328, 1062910, 2125820, 3295021, 4251640, 6590042, 13180084, 16475105, 26360168, 32950210, 65900420, 131800840]

約数ペア:

[(1, 131800840), (2, 65900420), (4, 32950210), (5, 26360168), (8, 16475105), (10, 13180084), (20, 6590042), (31, 4251640), (40, 3295021), (62, 2125820), (124, 1062910), (155, 850328), (248, 531455), (310, 425164), (620, 212582), (1240, 106291)]