31041340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 72930816

約数和(自身を除く): 41889476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 121, 127, 202, 220, 242, 254, 404, 484, 505, 508, 605, 635, 1010, 1111, 1210, 1270, 1397, 2020, 2222, 2420, 2540, 2794, 4444, 5555, 5588, 6985, 11110, 12221, 12827, 13970, 15367, 22220, 24442, 25654, 27940, 30734, 48884, 51308, 61105, 61468, 64135, 76835, 122210, 128270, 141097, 153670, 244420, 256540, 282194, 307340, 564388, 705485, 1410970, 1552067, 2821940, 3104134, 6208268, 7760335, 15520670, 31041340]

約数ペア:

[(1, 31041340), (2, 15520670), (4, 7760335), (5, 6208268), (10, 3104134), (11, 2821940), (20, 1552067), (22, 1410970), (44, 705485), (55, 564388), (101, 307340), (110, 282194), (121, 256540), (127, 244420), (202, 153670), (220, 141097), (242, 128270), (254, 122210), (404, 76835), (484, 64135), (505, 61468), (508, 61105), (605, 51308), (635, 48884), (1010, 30734), (1111, 27940), (1210, 25654), (1270, 24442), (1397, 22220), (2020, 15367), (2222, 13970), (2420, 12827), (2540, 12221), (2794, 11110), (4444, 6985), (5555, 5588)]