725834240

素因数分解:

$2^9\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1009}}^1$

素因数の和:1313

約数の個数: 80

約数和(自身を含む): 1748225160

約数和(自身を除く): 1022390920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 281, 320, 512, 562, 640, 1009, 1124, 1280, 1405, 2018, 2248, 2560, 2810, 4036, 4496, 5045, 5620, 8072, 8992, 10090, 11240, 16144, 17984, 20180, 22480, 32288, 35968, 40360, 44960, 64576, 71936, 80720, 89920, 129152, 143872, 161440, 179840, 258304, 283529, 322880, 359680, 516608, 567058, 645760, 719360, 1134116, 1291520, 1417645, 2268232, 2583040, 2835290, 4536464, 5670580, 9072928, 11341160, 18145856, 22682320, 36291712, 45364640, 72583424, 90729280, 145166848, 181458560, 362917120, 725834240]

約数ペア:

[(1, 725834240), (2, 362917120), (4, 181458560), (5, 145166848), (8, 90729280), (10, 72583424), (16, 45364640), (20, 36291712), (32, 22682320), (40, 18145856), (64, 11341160), (80, 9072928), (128, 5670580), (160, 4536464), (256, 2835290), (281, 2583040), (320, 2268232), (512, 1417645), (562, 1291520), (640, 1134116), (1009, 719360), (1124, 645760), (1280, 567058), (1405, 516608), (2018, 359680), (2248, 322880), (2560, 283529), (2810, 258304), (4036, 179840), (4496, 161440), (5045, 143872), (5620, 129152), (8072, 89920), (8992, 80720), (10090, 71936), (11240, 64576), (16144, 44960), (17984, 40360), (20180, 35968), (22480, 32288)]