213010820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:186

約数の個数: 144

約数和(自身を含む): 530893440

約数和(自身を除く): 317882620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 43, 44, 46, 55, 86, 89, 92, 110, 115, 121, 172, 178, 215, 220, 230, 242, 253, 356, 430, 445, 460, 473, 484, 506, 605, 860, 890, 946, 979, 989, 1012, 1210, 1265, 1780, 1892, 1958, 1978, 2047, 2365, 2420, 2530, 2783, 3827, 3916, 3956, 4094, 4730, 4895, 4945, 5060, 5203, 5566, 7654, 8188, 9460, 9790, 9890, 10235, 10406, 10769, 10879, 11132, 13915, 15308, 19135, 19580, 19780, 20470, 20812, 21538, 21758, 22517, 26015, 27830, 38270, 40940, 42097, 43076, 43516, 45034, 52030, 53845, 54395, 55660, 76540, 84194, 88021, 90068, 104060, 107690, 108790, 112585, 119669, 168388, 176042, 210485, 215380, 217580, 225170, 239338, 247687, 352084, 420970, 440105, 450340, 463067, 478676, 495374, 598345, 841940, 880210, 926134, 968231, 990748, 1196690, 1238435, 1760420, 1852268, 1936462, 2315335, 2393380, 2476870, 3872924, 4630670, 4841155, 4953740, 9261340, 9682310, 10650541, 19364620, 21301082, 42602164, 53252705, 106505410, 213010820]

約数ペア:

[(1, 213010820), (2, 106505410), (4, 53252705), (5, 42602164), (10, 21301082), (11, 19364620), (20, 10650541), (22, 9682310), (23, 9261340), (43, 4953740), (44, 4841155), (46, 4630670), (55, 3872924), (86, 2476870), (89, 2393380), (92, 2315335), (110, 1936462), (115, 1852268), (121, 1760420), (172, 1238435), (178, 1196690), (215, 990748), (220, 968231), (230, 926134), (242, 880210), (253, 841940), (356, 598345), (430, 495374), (445, 478676), (460, 463067), (473, 450340), (484, 440105), (506, 420970), (605, 352084), (860, 247687), (890, 239338), (946, 225170), (979, 217580), (989, 215380), (1012, 210485), (1210, 176042), (1265, 168388), (1780, 119669), (1892, 112585), (1958, 108790), (1978, 107690), (2047, 104060), (2365, 90068), (2420, 88021), (2530, 84194), (2783, 76540), (3827, 55660), (3916, 54395), (3956, 53845), (4094, 52030), (4730, 45034), (4895, 43516), (4945, 43076), (5060, 42097), (5203, 40940), (5566, 38270), (7654, 27830), (8188, 26015), (9460, 22517), (9790, 21758), (9890, 21538), (10235, 20812), (10406, 20470), (10769, 19780), (10879, 19580), (11132, 19135), (13915, 15308)]