80408720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1033}}^1$

素因数の和:1192

約数の個数: 80

約数和(自身を含む): 215402880

約数和(自身を除く): 134994160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 139, 140, 278, 280, 556, 560, 695, 973, 1033, 1112, 1390, 1946, 2066, 2224, 2780, 3892, 4132, 4865, 5165, 5560, 7231, 7784, 8264, 9730, 10330, 11120, 14462, 15568, 16528, 19460, 20660, 28924, 36155, 38920, 41320, 57848, 72310, 77840, 82640, 115696, 143587, 144620, 287174, 289240, 574348, 578480, 717935, 1005109, 1148696, 1435870, 2010218, 2297392, 2871740, 4020436, 5025545, 5743480, 8040872, 10051090, 11486960, 16081744, 20102180, 40204360, 80408720]

約数ペア:

[(1, 80408720), (2, 40204360), (4, 20102180), (5, 16081744), (7, 11486960), (8, 10051090), (10, 8040872), (14, 5743480), (16, 5025545), (20, 4020436), (28, 2871740), (35, 2297392), (40, 2010218), (56, 1435870), (70, 1148696), (80, 1005109), (112, 717935), (139, 578480), (140, 574348), (278, 289240), (280, 287174), (556, 144620), (560, 143587), (695, 115696), (973, 82640), (1033, 77840), (1112, 72310), (1390, 57848), (1946, 41320), (2066, 38920), (2224, 36155), (2780, 28924), (3892, 20660), (4132, 19460), (4865, 16528), (5165, 15568), (5560, 14462), (7231, 11120), (7784, 10330), (8264, 9730)]