290222000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^2\times {\mathrm{151}}^1$

素因数の和:236

約数の個数: 120

約数和(自身を含む): 729926496

約数和(自身を除く): 439704496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 151, 155, 200, 248, 250, 302, 310, 400, 496, 500, 604, 620, 755, 775, 961, 1000, 1208, 1240, 1510, 1550, 1922, 2000, 2416, 2480, 3020, 3100, 3775, 3844, 3875, 4681, 4805, 6040, 6200, 7550, 7688, 7750, 9362, 9610, 12080, 12400, 15100, 15376, 15500, 18724, 18875, 19220, 23405, 24025, 30200, 31000, 37448, 37750, 38440, 46810, 48050, 60400, 62000, 74896, 75500, 76880, 93620, 96100, 117025, 120125, 145111, 151000, 187240, 192200, 234050, 240250, 290222, 302000, 374480, 384400, 468100, 480500, 580444, 585125, 725555, 936200, 961000, 1160888, 1170250, 1451110, 1872400, 1922000, 2321776, 2340500, 2902220, 3627775, 4681000, 5804440, 7255550, 9362000, 11608880, 14511100, 18138875, 29022200, 36277750, 58044400, 72555500, 145111000, 290222000]

約数ペア:

[(1, 290222000), (2, 145111000), (4, 72555500), (5, 58044400), (8, 36277750), (10, 29022200), (16, 18138875), (20, 14511100), (25, 11608880), (31, 9362000), (40, 7255550), (50, 5804440), (62, 4681000), (80, 3627775), (100, 2902220), (124, 2340500), (125, 2321776), (151, 1922000), (155, 1872400), (200, 1451110), (248, 1170250), (250, 1160888), (302, 961000), (310, 936200), (400, 725555), (496, 585125), (500, 580444), (604, 480500), (620, 468100), (755, 384400), (775, 374480), (961, 302000), (1000, 290222), (1208, 240250), (1240, 234050), (1510, 192200), (1550, 187240), (1922, 151000), (2000, 145111), (2416, 120125), (2480, 117025), (3020, 96100), (3100, 93620), (3775, 76880), (3844, 75500), (3875, 74896), (4681, 62000), (4805, 60400), (6040, 48050), (6200, 46810), (7550, 38440), (7688, 37750), (7750, 37448), (9362, 31000), (9610, 30200), (12080, 24025), (12400, 23405), (15100, 19220), (15376, 18875), (15500, 18724)]