25496780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20899}}^1$

素因数の和:20969

約数の個数: 24

約数和(自身を含む): 54423600

約数和(自身を除く): 28926820

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 20899, 41798, 83596, 104495, 208990, 417980, 1274839, 2549678, 5099356, 6374195, 12748390, 25496780]

約数ペア:

[(1, 25496780), (2, 12748390), (4, 6374195), (5, 5099356), (10, 2549678), (20, 1274839), (61, 417980), (122, 208990), (244, 104495), (305, 83596), (610, 41798), (1220, 20899)]