80219440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{143249}}^1$

素因数の和:143269

約数の個数: 40

約数和(自身を含む): 213156000

約数和(自身を除く): 132936560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 143249, 286498, 572996, 716245, 1002743, 1145992, 1432490, 2005486, 2291984, 2864980, 4010972, 5013715, 5729960, 8021944, 10027430, 11459920, 16043888, 20054860, 40109720, 80219440]

約数ペア:

[(1, 80219440), (2, 40109720), (4, 20054860), (5, 16043888), (7, 11459920), (8, 10027430), (10, 8021944), (14, 5729960), (16, 5013715), (20, 4010972), (28, 2864980), (35, 2291984), (40, 2005486), (56, 1432490), (70, 1145992), (80, 1002743), (112, 716245), (140, 572996), (280, 286498), (560, 143249)]