39849160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{389}}^1$

素因数の和:610

約数の個数: 64

約数和(自身を含む): 97297200

約数和(自身を除く): 57448040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 197, 260, 389, 394, 520, 778, 788, 985, 1556, 1576, 1945, 1970, 2561, 3112, 3890, 3940, 5057, 5122, 7780, 7880, 10114, 10244, 12805, 15560, 20228, 20488, 25285, 25610, 40456, 50570, 51220, 76633, 101140, 102440, 153266, 202280, 306532, 383165, 613064, 766330, 996229, 1532660, 1992458, 3065320, 3984916, 4981145, 7969832, 9962290, 19924580, 39849160]

約数ペア:

[(1, 39849160), (2, 19924580), (4, 9962290), (5, 7969832), (8, 4981145), (10, 3984916), (13, 3065320), (20, 1992458), (26, 1532660), (40, 996229), (52, 766330), (65, 613064), (104, 383165), (130, 306532), (197, 202280), (260, 153266), (389, 102440), (394, 101140), (520, 76633), (778, 51220), (788, 50570), (985, 40456), (1556, 25610), (1576, 25285), (1945, 20488), (1970, 20228), (2561, 15560), (3112, 12805), (3890, 10244), (3940, 10114), (5057, 7880), (5122, 7780)]