400106300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:252

約数の個数: 144

約数和(自身を含む): 989936640

約数和(自身を除く): 589830340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 47, 50, 55, 71, 94, 100, 109, 110, 142, 188, 218, 220, 235, 275, 284, 355, 436, 470, 517, 545, 550, 710, 781, 940, 1034, 1090, 1100, 1175, 1199, 1420, 1562, 1775, 2068, 2180, 2350, 2398, 2585, 2725, 3124, 3337, 3550, 3905, 4700, 4796, 5123, 5170, 5450, 5995, 6674, 7100, 7739, 7810, 10246, 10340, 10900, 11990, 12925, 13348, 15478, 15620, 16685, 19525, 20492, 23980, 25615, 25850, 29975, 30956, 33370, 36707, 38695, 39050, 51230, 51700, 56353, 59950, 66740, 73414, 77390, 78100, 83425, 85129, 102460, 112706, 119900, 128075, 146828, 154780, 166850, 170258, 183535, 193475, 225412, 256150, 281765, 333700, 340516, 363733, 367070, 386950, 425645, 512300, 563530, 727466, 734140, 773900, 851290, 917675, 1127060, 1408825, 1454932, 1702580, 1818665, 1835350, 2128225, 2817650, 3637330, 3670700, 4001063, 4256450, 5635300, 7274660, 8002126, 8512900, 9093325, 16004252, 18186650, 20005315, 36373300, 40010630, 80021260, 100026575, 200053150, 400106300]

約数ペア:

[(1, 400106300), (2, 200053150), (4, 100026575), (5, 80021260), (10, 40010630), (11, 36373300), (20, 20005315), (22, 18186650), (25, 16004252), (44, 9093325), (47, 8512900), (50, 8002126), (55, 7274660), (71, 5635300), (94, 4256450), (100, 4001063), (109, 3670700), (110, 3637330), (142, 2817650), (188, 2128225), (218, 1835350), (220, 1818665), (235, 1702580), (275, 1454932), (284, 1408825), (355, 1127060), (436, 917675), (470, 851290), (517, 773900), (545, 734140), (550, 727466), (710, 563530), (781, 512300), (940, 425645), (1034, 386950), (1090, 367070), (1100, 363733), (1175, 340516), (1199, 333700), (1420, 281765), (1562, 256150), (1775, 225412), (2068, 193475), (2180, 183535), (2350, 170258), (2398, 166850), (2585, 154780), (2725, 146828), (3124, 128075), (3337, 119900), (3550, 112706), (3905, 102460), (4700, 85129), (4796, 83425), (5123, 78100), (5170, 77390), (5450, 73414), (5995, 66740), (6674, 59950), (7100, 56353), (7739, 51700), (7810, 51230), (10246, 39050), (10340, 38695), (10900, 36707), (11990, 33370), (12925, 30956), (13348, 29975), (15478, 25850), (15620, 25615), (16685, 23980), (19525, 20492)]