64880980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2128

約数の個数: 48

約数和(自身を含む): 143256960

約数和(自身を除く): 78375980

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 74, 86, 148, 172, 185, 215, 370, 430, 740, 860, 1591, 2039, 3182, 4078, 6364, 7955, 8156, 10195, 15910, 20390, 31820, 40780, 75443, 87677, 150886, 175354, 301772, 350708, 377215, 438385, 754430, 876770, 1508860, 1753540, 3244049, 6488098, 12976196, 16220245, 32440490, 64880980]

約数ペア:

[(1, 64880980), (2, 32440490), (4, 16220245), (5, 12976196), (10, 6488098), (20, 3244049), (37, 1753540), (43, 1508860), (74, 876770), (86, 754430), (148, 438385), (172, 377215), (185, 350708), (215, 301772), (370, 175354), (430, 150886), (740, 87677), (860, 75443), (1591, 40780), (2039, 31820), (3182, 20390), (4078, 15910), (6364, 10195), (7955, 8156)]