20135378440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1277}}^1\times {\mathrm{20747}}^1$

素因数の和:22054

約数の個数: 64

約数和(自身を含む): 47728699200

約数和(自身を除く): 27593320760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1277, 2554, 5108, 6385, 10216, 12770, 20747, 24263, 25540, 41494, 48526, 51080, 82988, 97052, 103735, 121315, 165976, 194104, 207470, 242630, 394193, 414940, 485260, 788386, 829880, 970520, 1576772, 1970965, 3153544, 3941930, 7883860, 15767720, 26493919, 52987838, 105975676, 132469595, 211951352, 264939190, 503384461, 529878380, 1006768922, 1059756760, 2013537844, 2516922305, 4027075688, 5033844610, 10067689220, 20135378440]

約数ペア:

[(1, 20135378440), (2, 10067689220), (4, 5033844610), (5, 4027075688), (8, 2516922305), (10, 2013537844), (19, 1059756760), (20, 1006768922), (38, 529878380), (40, 503384461), (76, 264939190), (95, 211951352), (152, 132469595), (190, 105975676), (380, 52987838), (760, 26493919), (1277, 15767720), (2554, 7883860), (5108, 3941930), (6385, 3153544), (10216, 1970965), (12770, 1576772), (20747, 970520), (24263, 829880), (25540, 788386), (41494, 485260), (48526, 414940), (51080, 394193), (82988, 242630), (97052, 207470), (103735, 194104), (121315, 165976)]