28655028

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:333

約数の個数: 72

約数和(自身を含む): 75243168

約数和(自身を除く): 46588140

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 107, 129, 172, 173, 214, 258, 321, 346, 387, 428, 516, 519, 642, 692, 774, 963, 1038, 1284, 1548, 1557, 1926, 2076, 3114, 3852, 4601, 6228, 7439, 9202, 13803, 14878, 18404, 18511, 22317, 27606, 29756, 37022, 41409, 44634, 55212, 55533, 66951, 74044, 82818, 89268, 111066, 133902, 165636, 166599, 222132, 267804, 333198, 666396, 795973, 1591946, 2387919, 3183892, 4775838, 7163757, 9551676, 14327514, 28655028]

約数ペア:

[(1, 28655028), (2, 14327514), (3, 9551676), (4, 7163757), (6, 4775838), (9, 3183892), (12, 2387919), (18, 1591946), (36, 795973), (43, 666396), (86, 333198), (107, 267804), (129, 222132), (172, 166599), (173, 165636), (214, 133902), (258, 111066), (321, 89268), (346, 82818), (387, 74044), (428, 66951), (516, 55533), (519, 55212), (642, 44634), (692, 41409), (774, 37022), (963, 29756), (1038, 27606), (1284, 22317), (1548, 18511), (1557, 18404), (1926, 14878), (2076, 13803), (3114, 9202), (3852, 7439), (4601, 6228)]