79914640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1787}}^1$

素因数の和:1856

約数の個数: 80

約数和(自身を含む): 204861888

約数和(自身を除く): 124947248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 1040, 1118, 1720, 1787, 2236, 2795, 3440, 3574, 4472, 5590, 7148, 8935, 8944, 11180, 14296, 17870, 22360, 23231, 28592, 35740, 44720, 46462, 71480, 76841, 92924, 116155, 142960, 153682, 185848, 232310, 307364, 371696, 384205, 464620, 614728, 768410, 929240, 998933, 1229456, 1536820, 1858480, 1997866, 3073640, 3995732, 4994665, 6147280, 7991464, 9989330, 15982928, 19978660, 39957320, 79914640]

約数ペア:

[(1, 79914640), (2, 39957320), (4, 19978660), (5, 15982928), (8, 9989330), (10, 7991464), (13, 6147280), (16, 4994665), (20, 3995732), (26, 3073640), (40, 1997866), (43, 1858480), (52, 1536820), (65, 1229456), (80, 998933), (86, 929240), (104, 768410), (130, 614728), (172, 464620), (208, 384205), (215, 371696), (260, 307364), (344, 232310), (430, 185848), (520, 153682), (559, 142960), (688, 116155), (860, 92924), (1040, 76841), (1118, 71480), (1720, 46462), (1787, 44720), (2236, 35740), (2795, 28592), (3440, 23231), (3574, 22360), (4472, 17870), (5590, 14296), (7148, 11180), (8935, 8944)]