1681103216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{260717}}^1$

素因数の和:260769

約数の個数: 40

約数和(自身を含む): 3620851584

約数和(自身を除く): 1939748368

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 260717, 521434, 1042868, 2085736, 3389321, 4171472, 6778642, 8082227, 13557284, 16164454, 27114568, 32328908, 54229136, 64657816, 105068951, 129315632, 210137902, 420275804, 840551608, 1681103216]

約数ペア:

[(1, 1681103216), (2, 840551608), (4, 420275804), (8, 210137902), (13, 129315632), (16, 105068951), (26, 64657816), (31, 54229136), (52, 32328908), (62, 27114568), (104, 16164454), (124, 13557284), (208, 8082227), (248, 6778642), (403, 4171472), (496, 3389321), (806, 2085736), (1612, 1042868), (3224, 521434), (6448, 260717)]