20508112

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{239}}^1$

素因数の和:451

約数の個数: 40

約数和(自身を含む): 41425920

約数和(自身を除く): 20917808

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 173, 239, 248, 346, 478, 496, 692, 956, 1384, 1912, 2768, 3824, 5363, 7409, 10726, 14818, 21452, 29636, 41347, 42904, 59272, 82694, 85808, 118544, 165388, 330776, 661552, 1281757, 2563514, 5127028, 10254056, 20508112]

約数ペア:

[(1, 20508112), (2, 10254056), (4, 5127028), (8, 2563514), (16, 1281757), (31, 661552), (62, 330776), (124, 165388), (173, 118544), (239, 85808), (248, 82694), (346, 59272), (478, 42904), (496, 41347), (692, 29636), (956, 21452), (1384, 14818), (1912, 10726), (2768, 7409), (3824, 5363)]