2008982720

素因数分解:

$2^6\times 5^1\times {\mathrm{389}}^1\times {\mathrm{16139}}^1$

素因数の和:16545

約数の個数: 56

約数和(自身を含む): 4796485200

約数和(自身を除く): 2787502480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 389, 778, 1556, 1945, 3112, 3890, 6224, 7780, 12448, 15560, 16139, 24896, 31120, 32278, 62240, 64556, 80695, 124480, 129112, 161390, 258224, 322780, 516448, 645560, 1032896, 1291120, 2582240, 5164480, 6278071, 12556142, 25112284, 31390355, 50224568, 62780710, 100449136, 125561420, 200898272, 251122840, 401796544, 502245680, 1004491360, 2008982720]

約数ペア:

[(1, 2008982720), (2, 1004491360), (4, 502245680), (5, 401796544), (8, 251122840), (10, 200898272), (16, 125561420), (20, 100449136), (32, 62780710), (40, 50224568), (64, 31390355), (80, 25112284), (160, 12556142), (320, 6278071), (389, 5164480), (778, 2582240), (1556, 1291120), (1945, 1032896), (3112, 645560), (3890, 516448), (6224, 322780), (7780, 258224), (12448, 161390), (15560, 129112), (16139, 124480), (24896, 80695), (31120, 64556), (32278, 62240)]