12503780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{277}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 27508656

約数和(自身を除く): 15004876

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 244, 277, 305, 370, 554, 610, 740, 1108, 1220, 1385, 2257, 2770, 4514, 5540, 9028, 10249, 11285, 16897, 20498, 22570, 33794, 40996, 45140, 51245, 67588, 84485, 102490, 168970, 204980, 337940, 625189, 1250378, 2500756, 3125945, 6251890, 12503780]

約数ペア:

[(1, 12503780), (2, 6251890), (4, 3125945), (5, 2500756), (10, 1250378), (20, 625189), (37, 337940), (61, 204980), (74, 168970), (122, 102490), (148, 84485), (185, 67588), (244, 51245), (277, 45140), (305, 40996), (370, 33794), (554, 22570), (610, 20498), (740, 16897), (1108, 11285), (1220, 10249), (1385, 9028), (2257, 5540), (2770, 4514)]