69138380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{269}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 148599360

約数和(自身を除く): 79460980

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 181, 269, 284, 355, 362, 538, 710, 724, 905, 1076, 1345, 1420, 1810, 2690, 3620, 5380, 12851, 19099, 25702, 38198, 48689, 51404, 64255, 76396, 95495, 97378, 128510, 190990, 194756, 243445, 257020, 381980, 486890, 973780, 3456919, 6913838, 13827676, 17284595, 34569190, 69138380]

約数ペア:

[(1, 69138380), (2, 34569190), (4, 17284595), (5, 13827676), (10, 6913838), (20, 3456919), (71, 973780), (142, 486890), (181, 381980), (269, 257020), (284, 243445), (355, 194756), (362, 190990), (538, 128510), (710, 97378), (724, 95495), (905, 76396), (1076, 64255), (1345, 51404), (1420, 48689), (1810, 38198), (2690, 25702), (3620, 19099), (5380, 12851)]