81116230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^2\times {\mathrm{139}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 160770960

約数和(自身を除く): 79654730

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 139, 278, 335, 670, 695, 871, 1390, 1742, 1807, 3614, 4355, 4489, 8710, 8978, 9035, 9313, 18070, 18626, 22445, 44890, 46565, 58357, 93130, 116714, 121069, 242138, 291785, 583570, 605345, 623971, 1210690, 1247942, 3119855, 6239710, 8111623, 16223246, 40558115, 81116230]

約数ペア:

[(1, 81116230), (2, 40558115), (5, 16223246), (10, 8111623), (13, 6239710), (26, 3119855), (65, 1247942), (67, 1210690), (130, 623971), (134, 605345), (139, 583570), (278, 291785), (335, 242138), (670, 121069), (695, 116714), (871, 93130), (1390, 58357), (1742, 46565), (1807, 44890), (3614, 22445), (4355, 18626), (4489, 18070), (8710, 9313), (8978, 9035)]