19980489122

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{1987}}^1$

素因数の和:2247

約数の個数: 64

約数和(自身を含む): 34077818880

約数和(自身を除く): 14097329758

約数列:

[1, 2, 11, 22, 59, 61, 118, 122, 127, 254, 649, 671, 1298, 1342, 1397, 1987, 2794, 3599, 3974, 7198, 7493, 7747, 14986, 15494, 21857, 39589, 43714, 79178, 82423, 85217, 117233, 121207, 164846, 170434, 234466, 242414, 252349, 457073, 504698, 914146, 1289563, 1333277, 2579126, 2666554, 2775839, 5027803, 5551678, 7151213, 10055606, 14302426, 14888591, 15393289, 29777182, 30786578, 78663343, 157326686, 163774501, 169326179, 327549002, 338652358, 908204051, 1816408102, 9990244561, 19980489122]

約数ペア:

[(1, 19980489122), (2, 9990244561), (11, 1816408102), (22, 908204051), (59, 338652358), (61, 327549002), (118, 169326179), (122, 163774501), (127, 157326686), (254, 78663343), (649, 30786578), (671, 29777182), (1298, 15393289), (1342, 14888591), (1397, 14302426), (1987, 10055606), (2794, 7151213), (3599, 5551678), (3974, 5027803), (7198, 2775839), (7493, 2666554), (7747, 2579126), (14986, 1333277), (15494, 1289563), (21857, 914146), (39589, 504698), (43714, 457073), (79178, 252349), (82423, 242414), (85217, 234466), (117233, 170434), (121207, 164846)]