77640940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4457}}^1$

素因数の和:4546

約数の個数: 48

約数和(自身を含む): 178248672

約数和(自身を除く): 100607732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 4355, 4457, 8710, 8914, 17420, 17828, 22285, 44570, 57941, 89140, 115882, 231764, 289705, 298619, 579410, 597238, 1158820, 1194476, 1493095, 2986190, 3882047, 5972380, 7764094, 15528188, 19410235, 38820470, 77640940]

約数ペア:

[(1, 77640940), (2, 38820470), (4, 19410235), (5, 15528188), (10, 7764094), (13, 5972380), (20, 3882047), (26, 2986190), (52, 1493095), (65, 1194476), (67, 1158820), (130, 597238), (134, 579410), (260, 298619), (268, 289705), (335, 231764), (670, 115882), (871, 89140), (1340, 57941), (1742, 44570), (3484, 22285), (4355, 17828), (4457, 17420), (8710, 8914)]