78340840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1231}}^1$

素因数の和:1322

約数の個数: 64

約数和(自身を含む): 185391360

約数和(自身を除く): 107050520

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 43, 74, 86, 148, 172, 185, 215, 296, 344, 370, 430, 740, 860, 1231, 1480, 1591, 1720, 2462, 3182, 4924, 6155, 6364, 7955, 9848, 12310, 12728, 15910, 24620, 31820, 45547, 49240, 52933, 63640, 91094, 105866, 182188, 211732, 227735, 264665, 364376, 423464, 455470, 529330, 910940, 1058660, 1821880, 1958521, 2117320, 3917042, 7834084, 9792605, 15668168, 19585210, 39170420, 78340840]

約数ペア:

[(1, 78340840), (2, 39170420), (4, 19585210), (5, 15668168), (8, 9792605), (10, 7834084), (20, 3917042), (37, 2117320), (40, 1958521), (43, 1821880), (74, 1058660), (86, 910940), (148, 529330), (172, 455470), (185, 423464), (215, 364376), (296, 264665), (344, 227735), (370, 211732), (430, 182188), (740, 105866), (860, 91094), (1231, 63640), (1480, 52933), (1591, 49240), (1720, 45547), (2462, 31820), (3182, 24620), (4924, 15910), (6155, 12728), (6364, 12310), (7955, 9848)]