30137980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 65691360

約数和(自身を除く): 35553380

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 139, 148, 185, 278, 293, 370, 556, 586, 695, 740, 1172, 1390, 1465, 2780, 2930, 5143, 5860, 10286, 10841, 20572, 21682, 25715, 40727, 43364, 51430, 54205, 81454, 102860, 108410, 162908, 203635, 216820, 407270, 814540, 1506899, 3013798, 6027596, 7534495, 15068990, 30137980]

約数ペア:

[(1, 30137980), (2, 15068990), (4, 7534495), (5, 6027596), (10, 3013798), (20, 1506899), (37, 814540), (74, 407270), (139, 216820), (148, 203635), (185, 162908), (278, 108410), (293, 102860), (370, 81454), (556, 54205), (586, 51430), (695, 43364), (740, 40727), (1172, 25715), (1390, 21682), (1465, 20572), (2780, 10841), (2930, 10286), (5143, 5860)]