78503440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51647}}^1$

素因数の和:51679

約数の個数: 40

約数和(自身を含む): 192130560

約数和(自身を除く): 113627120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 51647, 103294, 206588, 258235, 413176, 516470, 826352, 981293, 1032940, 1962586, 2065880, 3925172, 4131760, 4906465, 7850344, 9812930, 15700688, 19625860, 39251720, 78503440]

約数ペア:

[(1, 78503440), (2, 39251720), (4, 19625860), (5, 15700688), (8, 9812930), (10, 7850344), (16, 4906465), (19, 4131760), (20, 3925172), (38, 2065880), (40, 1962586), (76, 1032940), (80, 981293), (95, 826352), (152, 516470), (190, 413176), (304, 258235), (380, 206588), (760, 103294), (1520, 51647)]