31075120

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1249}}^1$

素因数の和:1573

約数の個数: 40

約数和(自身を含む): 72540000

約数和(自身を除く): 41464880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1244, 1249, 1555, 2488, 2498, 3110, 4976, 4996, 6220, 6245, 9992, 12440, 12490, 19984, 24880, 24980, 49960, 99920, 388439, 776878, 1553756, 1942195, 3107512, 3884390, 6215024, 7768780, 15537560, 31075120]

約数ペア:

[(1, 31075120), (2, 15537560), (4, 7768780), (5, 6215024), (8, 3884390), (10, 3107512), (16, 1942195), (20, 1553756), (40, 776878), (80, 388439), (311, 99920), (622, 49960), (1244, 24980), (1249, 24880), (1555, 19984), (2488, 12490), (2498, 12440), (3110, 9992), (4976, 6245), (4996, 6220)]