72131560

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{3203}}^1$

素因数の和:3777

約数の個数: 32

約数和(自身を含む): 162635040

約数和(自身を除く): 90503480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 1126, 2252, 2815, 3203, 4504, 5630, 6406, 11260, 12812, 16015, 22520, 25624, 32030, 64060, 128120, 1803289, 3606578, 7213156, 9016445, 14426312, 18032890, 36065780, 72131560]

約数ペア:

[(1, 72131560), (2, 36065780), (4, 18032890), (5, 14426312), (8, 9016445), (10, 7213156), (20, 3606578), (40, 1803289), (563, 128120), (1126, 64060), (2252, 32030), (2815, 25624), (3203, 22520), (4504, 16015), (5630, 12812), (6406, 11260)]