20796870440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{104381}}^1$

素因数の和:104702

約数の個数: 64

約数和(自身を含む): 49715058960

約数和(自身を除く): 28918188520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 293, 340, 586, 680, 1172, 1465, 2344, 2930, 4981, 5860, 9962, 11720, 19924, 24905, 39848, 49810, 99620, 104381, 199240, 208762, 417524, 521905, 835048, 1043810, 1774477, 2087620, 3548954, 4175240, 7097908, 8872385, 14195816, 17744770, 30583633, 35489540, 61167266, 70979080, 122334532, 152918165, 244669064, 305836330, 519921761, 611672660, 1039843522, 1223345320, 2079687044, 2599608805, 4159374088, 5199217610, 10398435220, 20796870440]

約数ペア:

[(1, 20796870440), (2, 10398435220), (4, 5199217610), (5, 4159374088), (8, 2599608805), (10, 2079687044), (17, 1223345320), (20, 1039843522), (34, 611672660), (40, 519921761), (68, 305836330), (85, 244669064), (136, 152918165), (170, 122334532), (293, 70979080), (340, 61167266), (586, 35489540), (680, 30583633), (1172, 17744770), (1465, 14195816), (2344, 8872385), (2930, 7097908), (4981, 4175240), (5860, 3548954), (9962, 2087620), (11720, 1774477), (19924, 1043810), (24905, 835048), (39848, 521905), (49810, 417524), (99620, 208762), (104381, 199240)]