85440080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1229}}^1$

素因数の和:1332

約数の個数: 80

約数和(自身を含む): 219628800

約数和(自身を除く): 134188720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 79, 80, 88, 110, 158, 176, 220, 316, 395, 440, 632, 790, 869, 880, 1229, 1264, 1580, 1738, 2458, 3160, 3476, 4345, 4916, 6145, 6320, 6952, 8690, 9832, 12290, 13519, 13904, 17380, 19664, 24580, 27038, 34760, 49160, 54076, 67595, 69520, 97091, 98320, 108152, 135190, 194182, 216304, 270380, 388364, 485455, 540760, 776728, 970910, 1068001, 1081520, 1553456, 1941820, 2136002, 3883640, 4272004, 5340005, 7767280, 8544008, 10680010, 17088016, 21360020, 42720040, 85440080]

約数ペア:

[(1, 85440080), (2, 42720040), (4, 21360020), (5, 17088016), (8, 10680010), (10, 8544008), (11, 7767280), (16, 5340005), (20, 4272004), (22, 3883640), (40, 2136002), (44, 1941820), (55, 1553456), (79, 1081520), (80, 1068001), (88, 970910), (110, 776728), (158, 540760), (176, 485455), (220, 388364), (316, 270380), (395, 216304), (440, 194182), (632, 135190), (790, 108152), (869, 98320), (880, 97091), (1229, 69520), (1264, 67595), (1580, 54076), (1738, 49160), (2458, 34760), (3160, 27038), (3476, 24580), (4345, 19664), (4916, 17380), (6145, 13904), (6320, 13519), (6952, 12290), (8690, 9832)]