138701840

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4457}}^1$

素因数の和:4859

約数の個数: 40

約数和(自身を含む): 323383320

約数和(自身を除く): 184681480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3890, 4457, 6224, 7780, 8914, 15560, 17828, 22285, 31120, 35656, 44570, 71312, 89140, 178280, 356560, 1733773, 3467546, 6935092, 8668865, 13870184, 17337730, 27740368, 34675460, 69350920, 138701840]

約数ペア:

[(1, 138701840), (2, 69350920), (4, 34675460), (5, 27740368), (8, 17337730), (10, 13870184), (16, 8668865), (20, 6935092), (40, 3467546), (80, 1733773), (389, 356560), (778, 178280), (1556, 89140), (1945, 71312), (3112, 44570), (3890, 35656), (4457, 31120), (6224, 22285), (7780, 17828), (8914, 15560)]