78310040

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{20183}}^1$

素因数の和:20291

約数の個数: 32

約数和(自身を含む): 178022880

約数和(自身を除く): 99712840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 20183, 40366, 80732, 100915, 161464, 201830, 403660, 807320, 1957751, 3915502, 7831004, 9788755, 15662008, 19577510, 39155020, 78310040]

約数ペア:

[(1, 78310040), (2, 39155020), (4, 19577510), (5, 15662008), (8, 9788755), (10, 7831004), (20, 3915502), (40, 1957751), (97, 807320), (194, 403660), (388, 201830), (485, 161464), (776, 100915), (970, 80732), (1940, 40366), (3880, 20183)]