87403940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{2647}}^1$

素因数の和:2796

約数の個数: 48

約数和(自身を含む): 199299072

約数和(自身を除く): 111895132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 1270, 1651, 2540, 2647, 3302, 5294, 6604, 8255, 10588, 13235, 16510, 26470, 33020, 34411, 52940, 68822, 137644, 172055, 336169, 344110, 672338, 688220, 1344676, 1680845, 3361690, 4370197, 6723380, 8740394, 17480788, 21850985, 43701970, 87403940]

約数ペア:

[(1, 87403940), (2, 43701970), (4, 21850985), (5, 17480788), (10, 8740394), (13, 6723380), (20, 4370197), (26, 3361690), (52, 1680845), (65, 1344676), (127, 688220), (130, 672338), (254, 344110), (260, 336169), (508, 172055), (635, 137644), (1270, 68822), (1651, 52940), (2540, 34411), (2647, 33020), (3302, 26470), (5294, 16510), (6604, 13235), (8255, 10588)]