18778839088

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1\times {\mathrm{1697}}^1$

素因数の和:2222

約数の個数: 80

約数和(自身を含む): 38846844000

約数和(自身を除く): 20068004912

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 89, 152, 178, 304, 356, 409, 712, 818, 1424, 1636, 1691, 1697, 3272, 3382, 3394, 6544, 6764, 6788, 7771, 13528, 13576, 15542, 27056, 27152, 31084, 32243, 36401, 62168, 64486, 72802, 124336, 128972, 145604, 151033, 257944, 291208, 302066, 515888, 582416, 604132, 691619, 694073, 1208264, 1383238, 1388146, 2416528, 2766476, 2776292, 2869627, 5532952, 5552584, 5739254, 11065904, 11105168, 11478508, 13187387, 22957016, 26374774, 45914032, 52749548, 61772497, 105499096, 123544994, 210998192, 247089988, 494179976, 988359952, 1173677443, 2347354886, 4694709772, 9389419544, 18778839088]

約数ペア:

[(1, 18778839088), (2, 9389419544), (4, 4694709772), (8, 2347354886), (16, 1173677443), (19, 988359952), (38, 494179976), (76, 247089988), (89, 210998192), (152, 123544994), (178, 105499096), (304, 61772497), (356, 52749548), (409, 45914032), (712, 26374774), (818, 22957016), (1424, 13187387), (1636, 11478508), (1691, 11105168), (1697, 11065904), (3272, 5739254), (3382, 5552584), (3394, 5532952), (6544, 2869627), (6764, 2776292), (6788, 2766476), (7771, 2416528), (13528, 1388146), (13576, 1383238), (15542, 1208264), (27056, 694073), (27152, 691619), (31084, 604132), (32243, 582416), (36401, 515888), (62168, 302066), (64486, 291208), (72802, 257944), (124336, 151033), (128972, 145604)]