12888291280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{61001}}^1$

素因数の和:61172

約数の個数: 80

約数和(自身を含む): 31769841600

約数和(自身を除く): 18881550320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 139, 152, 190, 278, 304, 380, 556, 695, 760, 1112, 1390, 1520, 2224, 2641, 2780, 5282, 5560, 10564, 11120, 13205, 21128, 26410, 42256, 52820, 61001, 105640, 122002, 211280, 244004, 305005, 488008, 610010, 976016, 1159019, 1220020, 2318038, 2440040, 4636076, 4880080, 5795095, 8479139, 9272152, 11590190, 16958278, 18544304, 23180380, 33916556, 42395695, 46360760, 67833112, 84791390, 92721520, 135666224, 161103641, 169582780, 322207282, 339165560, 644414564, 678331120, 805518205, 1288829128, 1611036410, 2577658256, 3222072820, 6444145640, 12888291280]

約数ペア:

[(1, 12888291280), (2, 6444145640), (4, 3222072820), (5, 2577658256), (8, 1611036410), (10, 1288829128), (16, 805518205), (19, 678331120), (20, 644414564), (38, 339165560), (40, 322207282), (76, 169582780), (80, 161103641), (95, 135666224), (139, 92721520), (152, 84791390), (190, 67833112), (278, 46360760), (304, 42395695), (380, 33916556), (556, 23180380), (695, 18544304), (760, 16958278), (1112, 11590190), (1390, 9272152), (1520, 8479139), (2224, 5795095), (2641, 4880080), (2780, 4636076), (5282, 2440040), (5560, 2318038), (10564, 1220020), (11120, 1159019), (13205, 976016), (21128, 610010), (26410, 488008), (42256, 305005), (52820, 244004), (61001, 211280), (105640, 122002)]