1800417008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{279221}}^1$

素因数の和:279273

約数の個数: 40

約数和(自身を含む): 3877835136

約数和(自身を除く): 2077418128

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 279221, 558442, 1116884, 2233768, 3629873, 4467536, 7259746, 8655851, 14519492, 17311702, 29038984, 34623404, 58077968, 69246808, 112526063, 138493616, 225052126, 450104252, 900208504, 1800417008]

約数ペア:

[(1, 1800417008), (2, 900208504), (4, 450104252), (8, 225052126), (13, 138493616), (16, 112526063), (26, 69246808), (31, 58077968), (52, 34623404), (62, 29038984), (104, 17311702), (124, 14519492), (208, 8655851), (248, 7259746), (403, 4467536), (496, 3629873), (806, 2233768), (1612, 1116884), (3224, 558442), (6448, 279221)]