87191720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28309}}^1$

素因数の和:28338

約数の個数: 64

約数和(自身を含む): 244598400

約数和(自身を除く): 157406680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 28309, 56618, 113236, 141545, 198163, 226472, 283090, 311399, 396326, 566180, 622798, 792652, 990815, 1132360, 1245596, 1556995, 1585304, 1981630, 2179793, 2491192, 3113990, 3963260, 4359586, 6227980, 7926520, 8719172, 10898965, 12455960, 17438344, 21797930, 43595860, 87191720]

約数ペア:

[(1, 87191720), (2, 43595860), (4, 21797930), (5, 17438344), (7, 12455960), (8, 10898965), (10, 8719172), (11, 7926520), (14, 6227980), (20, 4359586), (22, 3963260), (28, 3113990), (35, 2491192), (40, 2179793), (44, 1981630), (55, 1585304), (56, 1556995), (70, 1245596), (77, 1132360), (88, 990815), (110, 792652), (140, 622798), (154, 566180), (220, 396326), (280, 311399), (308, 283090), (385, 226472), (440, 198163), (616, 141545), (770, 113236), (1540, 56618), (3080, 28309)]