77851280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74857}}^1$

素因数の和:74883

約数の個数: 40

約数和(自身を含む): 194930232

約数和(自身を除く): 117078952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 74857, 149714, 299428, 374285, 598856, 748570, 973141, 1197712, 1497140, 1946282, 2994280, 3892564, 4865705, 5988560, 7785128, 9731410, 15570256, 19462820, 38925640, 77851280]

約数ペア:

[(1, 77851280), (2, 38925640), (4, 19462820), (5, 15570256), (8, 9731410), (10, 7785128), (13, 5988560), (16, 4865705), (20, 3892564), (26, 2994280), (40, 1946282), (52, 1497140), (65, 1197712), (80, 973141), (104, 748570), (130, 598856), (208, 374285), (260, 299428), (520, 149714), (1040, 74857)]