69020920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{461}}^1$

素因数の和:688

約数の個数: 64

約数和(自身を含む): 164656800

約数和(自身を除く): 95635880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 197, 380, 394, 461, 760, 788, 922, 985, 1576, 1844, 1970, 2305, 3688, 3743, 3940, 4610, 7486, 7880, 8759, 9220, 14972, 17518, 18440, 18715, 29944, 35036, 37430, 43795, 70072, 74860, 87590, 90817, 149720, 175180, 181634, 350360, 363268, 454085, 726536, 908170, 1725523, 1816340, 3451046, 3632680, 6902092, 8627615, 13804184, 17255230, 34510460, 69020920]

約数ペア:

[(1, 69020920), (2, 34510460), (4, 17255230), (5, 13804184), (8, 8627615), (10, 6902092), (19, 3632680), (20, 3451046), (38, 1816340), (40, 1725523), (76, 908170), (95, 726536), (152, 454085), (190, 363268), (197, 350360), (380, 181634), (394, 175180), (461, 149720), (760, 90817), (788, 87590), (922, 74860), (985, 70072), (1576, 43795), (1844, 37430), (1970, 35036), (2305, 29944), (3688, 18715), (3743, 18440), (3940, 17518), (4610, 14972), (7486, 9220), (7880, 8759)]