257029394530

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{639011}}^1$

素因数の和:639139

約数の個数: 64

約数和(自身を含む): 510698390400

約数和(自身を除く): 253668995870

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 73, 95, 145, 146, 190, 290, 365, 551, 730, 1102, 1387, 2117, 2755, 2774, 4234, 5510, 6935, 10585, 13870, 21170, 40223, 80446, 201115, 402230, 639011, 1278022, 3195055, 6390110, 12141209, 18531319, 24282418, 37062638, 46647803, 60706045, 92656595, 93295606, 121412090, 185313190, 233239015, 352095061, 466478030, 704190122, 886308257, 1352786287, 1760475305, 1772616514, 2705572574, 3520950610, 4431541285, 6763931435, 8863082570, 13527862870, 25702939453, 51405878906, 128514697265, 257029394530]

約数ペア:

[(1, 257029394530), (2, 128514697265), (5, 51405878906), (10, 25702939453), (19, 13527862870), (29, 8863082570), (38, 6763931435), (58, 4431541285), (73, 3520950610), (95, 2705572574), (145, 1772616514), (146, 1760475305), (190, 1352786287), (290, 886308257), (365, 704190122), (551, 466478030), (730, 352095061), (1102, 233239015), (1387, 185313190), (2117, 121412090), (2755, 93295606), (2774, 92656595), (4234, 60706045), (5510, 46647803), (6935, 37062638), (10585, 24282418), (13870, 18531319), (21170, 12141209), (40223, 6390110), (80446, 3195055), (201115, 1278022), (402230, 639011)]