66078160

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5261}}^1$

素因数の和:5431

約数の個数: 40

約数和(自身を含む): 154639656

約数和(自身を除く): 88561496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 5261, 6280, 10522, 12560, 21044, 26305, 42088, 52610, 84176, 105220, 210440, 420880, 825977, 1651954, 3303908, 4129885, 6607816, 8259770, 13215632, 16519540, 33039080, 66078160]

約数ペア:

[(1, 66078160), (2, 33039080), (4, 16519540), (5, 13215632), (8, 8259770), (10, 6607816), (16, 4129885), (20, 3303908), (40, 1651954), (80, 825977), (157, 420880), (314, 210440), (628, 105220), (785, 84176), (1256, 52610), (1570, 42088), (2512, 26305), (3140, 21044), (5261, 12560), (6280, 10522)]