138839288

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^2\times {\mathrm{313}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 301854480

約数和(自身を除く): 163015192

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 313, 356, 623, 626, 712, 1246, 1252, 2191, 2492, 2504, 4382, 4984, 7921, 8764, 15842, 17528, 27857, 31684, 55447, 55714, 63368, 110894, 111428, 194999, 221788, 222856, 389998, 443576, 779996, 1559992, 2479273, 4958546, 9917092, 17354911, 19834184, 34709822, 69419644, 138839288]

約数ペア:

[(1, 138839288), (2, 69419644), (4, 34709822), (7, 19834184), (8, 17354911), (14, 9917092), (28, 4958546), (56, 2479273), (89, 1559992), (178, 779996), (313, 443576), (356, 389998), (623, 222856), (626, 221788), (712, 194999), (1246, 111428), (1252, 110894), (2191, 63368), (2492, 55714), (2504, 55447), (4382, 31684), (4984, 27857), (7921, 17528), (8764, 15842)]