20124881488

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{643}}^1\times {\mathrm{47711}}^1$

素因数の和:48403

約数の個数: 40

約数和(自身を含む): 40005939456

約数和(自身を除く): 19881057968

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 643, 656, 1286, 2572, 5144, 10288, 26363, 47711, 52726, 95422, 105452, 190844, 210904, 381688, 421808, 763376, 1956151, 3912302, 7824604, 15649208, 30678173, 31298416, 61356346, 122712692, 245425384, 490850768, 1257805093, 2515610186, 5031220372, 10062440744, 20124881488]

約数ペア:

[(1, 20124881488), (2, 10062440744), (4, 5031220372), (8, 2515610186), (16, 1257805093), (41, 490850768), (82, 245425384), (164, 122712692), (328, 61356346), (643, 31298416), (656, 30678173), (1286, 15649208), (2572, 7824604), (5144, 3912302), (10288, 1956151), (26363, 763376), (47711, 421808), (52726, 381688), (95422, 210904), (105452, 190844)]