20154029008

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{688697}}^1$

素因数の和:688795

約数の個数: 40

約数和(自身を含む): 40991304960

約数和(自身を除く): 20837275952

約数列:

[1, 2, 4, 8, 16, 31, 59, 62, 118, 124, 236, 248, 472, 496, 944, 1829, 3658, 7316, 14632, 29264, 688697, 1377394, 2754788, 5509576, 11019152, 21349607, 40633123, 42699214, 81266246, 85398428, 162532492, 170796856, 325064984, 341593712, 650129968, 1259626813, 2519253626, 5038507252, 10077014504, 20154029008]

約数ペア:

[(1, 20154029008), (2, 10077014504), (4, 5038507252), (8, 2519253626), (16, 1259626813), (31, 650129968), (59, 341593712), (62, 325064984), (118, 170796856), (124, 162532492), (236, 85398428), (248, 81266246), (472, 42699214), (496, 40633123), (944, 21349607), (1829, 11019152), (3658, 5509576), (7316, 2754788), (14632, 1377394), (29264, 688697)]