1440921440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{769}}^1$

素因数の和:1037

約数の個数: 144

約数和(自身を含む): 3981700800

約数和(自身を除く): 2540779360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 239, 245, 280, 392, 478, 490, 560, 769, 784, 956, 980, 1120, 1195, 1538, 1568, 1673, 1912, 1960, 2390, 3076, 3346, 3824, 3845, 3920, 4780, 5383, 6152, 6692, 7648, 7690, 7840, 8365, 9560, 10766, 11711, 12304, 13384, 15380, 16730, 19120, 21532, 23422, 24608, 26768, 26915, 30760, 33460, 37681, 38240, 43064, 46844, 53536, 53830, 58555, 61520, 66920, 75362, 86128, 93688, 107660, 117110, 123040, 133840, 150724, 172256, 183791, 187376, 188405, 215320, 234220, 267680, 301448, 367582, 374752, 376810, 430640, 468440, 602896, 735164, 753620, 861280, 918955, 936880, 1205792, 1286537, 1470328, 1507240, 1837910, 1873760, 2573074, 2940656, 3014480, 3675820, 5146148, 5881312, 6028960, 6432685, 7351640, 9005759, 10292296, 12865370, 14703280, 18011518, 20584592, 25730740, 29406560, 36023036, 41169184, 45028795, 51461480, 72046072, 90057590, 102922960, 144092144, 180115180, 205845920, 288184288, 360230360, 720460720, 1440921440]

約数ペア:

[(1, 1440921440), (2, 720460720), (4, 360230360), (5, 288184288), (7, 205845920), (8, 180115180), (10, 144092144), (14, 102922960), (16, 90057590), (20, 72046072), (28, 51461480), (32, 45028795), (35, 41169184), (40, 36023036), (49, 29406560), (56, 25730740), (70, 20584592), (80, 18011518), (98, 14703280), (112, 12865370), (140, 10292296), (160, 9005759), (196, 7351640), (224, 6432685), (239, 6028960), (245, 5881312), (280, 5146148), (392, 3675820), (478, 3014480), (490, 2940656), (560, 2573074), (769, 1873760), (784, 1837910), (956, 1507240), (980, 1470328), (1120, 1286537), (1195, 1205792), (1538, 936880), (1568, 918955), (1673, 861280), (1912, 753620), (1960, 735164), (2390, 602896), (3076, 468440), (3346, 430640), (3824, 376810), (3845, 374752), (3920, 367582), (4780, 301448), (5383, 267680), (6152, 234220), (6692, 215320), (7648, 188405), (7690, 187376), (7840, 183791), (8365, 172256), (9560, 150724), (10766, 133840), (11711, 123040), (12304, 117110), (13384, 107660), (15380, 93688), (16730, 86128), (19120, 75362), (21532, 66920), (23422, 61520), (24608, 58555), (26768, 53830), (26915, 53536), (30760, 46844), (33460, 43064), (37681, 38240)]