129443380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{601}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 302649480

約数和(自身を除く): 173206100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 121, 178, 220, 242, 356, 445, 484, 601, 605, 890, 979, 1202, 1210, 1780, 1958, 2404, 2420, 3005, 3916, 4895, 6010, 6611, 9790, 10769, 12020, 13222, 19580, 21538, 26444, 33055, 43076, 53489, 53845, 66110, 72721, 106978, 107690, 132220, 145442, 213956, 215380, 267445, 290884, 363605, 534890, 588379, 727210, 1069780, 1176758, 1454420, 2353516, 2941895, 5883790, 6472169, 11767580, 12944338, 25888676, 32360845, 64721690, 129443380]

約数ペア:

[(1, 129443380), (2, 64721690), (4, 32360845), (5, 25888676), (10, 12944338), (11, 11767580), (20, 6472169), (22, 5883790), (44, 2941895), (55, 2353516), (89, 1454420), (110, 1176758), (121, 1069780), (178, 727210), (220, 588379), (242, 534890), (356, 363605), (445, 290884), (484, 267445), (601, 215380), (605, 213956), (890, 145442), (979, 132220), (1202, 107690), (1210, 106978), (1780, 72721), (1958, 66110), (2404, 53845), (2420, 53489), (3005, 43076), (3916, 33055), (4895, 26444), (6010, 21538), (6611, 19580), (9790, 13222), (10769, 12020)]