28990948

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 63201600

約数和(自身を除く): 34210652

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 59, 92, 98, 109, 118, 161, 196, 218, 236, 322, 413, 436, 644, 763, 826, 1127, 1357, 1526, 1652, 2254, 2507, 2714, 2891, 3052, 4508, 5014, 5341, 5428, 5782, 6431, 9499, 10028, 10682, 11564, 12862, 17549, 18998, 21364, 25724, 35098, 37996, 45017, 66493, 70196, 90034, 122843, 132986, 147913, 180068, 245686, 265972, 295826, 315119, 491372, 591652, 630238, 1035391, 1260476, 2070782, 4141564, 7247737, 14495474, 28990948]

約数ペア:

[(1, 28990948), (2, 14495474), (4, 7247737), (7, 4141564), (14, 2070782), (23, 1260476), (28, 1035391), (46, 630238), (49, 591652), (59, 491372), (92, 315119), (98, 295826), (109, 265972), (118, 245686), (161, 180068), (196, 147913), (218, 132986), (236, 122843), (322, 90034), (413, 70196), (436, 66493), (644, 45017), (763, 37996), (826, 35098), (1127, 25724), (1357, 21364), (1526, 18998), (1652, 17549), (2254, 12862), (2507, 11564), (2714, 10682), (2891, 10028), (3052, 9499), (4508, 6431), (5014, 5782), (5341, 5428)]