17891140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{521}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 40252464

約数和(自身を除く): 22361324

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 101, 170, 202, 340, 404, 505, 521, 1010, 1042, 1717, 2020, 2084, 2605, 3434, 5210, 6868, 8585, 8857, 10420, 17170, 17714, 34340, 35428, 44285, 52621, 88570, 105242, 177140, 210484, 263105, 526210, 894557, 1052420, 1789114, 3578228, 4472785, 8945570, 17891140]

約数ペア:

[(1, 17891140), (2, 8945570), (4, 4472785), (5, 3578228), (10, 1789114), (17, 1052420), (20, 894557), (34, 526210), (68, 263105), (85, 210484), (101, 177140), (170, 105242), (202, 88570), (340, 52621), (404, 44285), (505, 35428), (521, 34340), (1010, 17714), (1042, 17170), (1717, 10420), (2020, 8857), (2084, 8585), (2605, 6868), (3434, 5210)]