19471086640

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{12781}}^1$

素因数の和:13070

約数の個数: 80

約数和(自身を含む): 45932372640

約数和(自身を除く): 26461286000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 139, 274, 278, 548, 556, 685, 695, 1096, 1112, 1370, 1390, 2192, 2224, 2740, 2780, 5480, 5560, 10960, 11120, 12781, 19043, 25562, 38086, 51124, 63905, 76172, 95215, 102248, 127810, 152344, 190430, 204496, 255620, 304688, 380860, 511240, 761720, 1022480, 1523440, 1750997, 1776559, 3501994, 3553118, 7003988, 7106236, 8754985, 8882795, 14007976, 14212472, 17509970, 17765590, 28015952, 28424944, 35019940, 35531180, 70039880, 71062360, 140079760, 142124720, 243388583, 486777166, 973554332, 1216942915, 1947108664, 2433885830, 3894217328, 4867771660, 9735543320, 19471086640]

約数ペア:

[(1, 19471086640), (2, 9735543320), (4, 4867771660), (5, 3894217328), (8, 2433885830), (10, 1947108664), (16, 1216942915), (20, 973554332), (40, 486777166), (80, 243388583), (137, 142124720), (139, 140079760), (274, 71062360), (278, 70039880), (548, 35531180), (556, 35019940), (685, 28424944), (695, 28015952), (1096, 17765590), (1112, 17509970), (1370, 14212472), (1390, 14007976), (2192, 8882795), (2224, 8754985), (2740, 7106236), (2780, 7003988), (5480, 3553118), (5560, 3501994), (10960, 1776559), (11120, 1750997), (12781, 1523440), (19043, 1022480), (25562, 761720), (38086, 511240), (51124, 380860), (63905, 304688), (76172, 255620), (95215, 204496), (102248, 190430), (127810, 152344)]