321188800

素因数分解:

$2^6\times 5^2\times {\mathrm{197}}^1\times {\mathrm{1019}}^1$

素因数の和:1238

約数の個数: 84

約数和(自身を含む): 795116520

約数和(自身を除く): 473927720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 197, 200, 320, 394, 400, 788, 800, 985, 1019, 1576, 1600, 1970, 2038, 3152, 3940, 4076, 4925, 5095, 6304, 7880, 8152, 9850, 10190, 12608, 15760, 16304, 19700, 20380, 25475, 31520, 32608, 39400, 40760, 50950, 63040, 65216, 78800, 81520, 101900, 157600, 163040, 200743, 203800, 315200, 326080, 401486, 407600, 802972, 815200, 1003715, 1605944, 1630400, 2007430, 3211888, 4014860, 5018575, 6423776, 8029720, 10037150, 12847552, 16059440, 20074300, 32118880, 40148600, 64237760, 80297200, 160594400, 321188800]

約数ペア:

[(1, 321188800), (2, 160594400), (4, 80297200), (5, 64237760), (8, 40148600), (10, 32118880), (16, 20074300), (20, 16059440), (25, 12847552), (32, 10037150), (40, 8029720), (50, 6423776), (64, 5018575), (80, 4014860), (100, 3211888), (160, 2007430), (197, 1630400), (200, 1605944), (320, 1003715), (394, 815200), (400, 802972), (788, 407600), (800, 401486), (985, 326080), (1019, 315200), (1576, 203800), (1600, 200743), (1970, 163040), (2038, 157600), (3152, 101900), (3940, 81520), (4076, 78800), (4925, 65216), (5095, 63040), (6304, 50950), (7880, 40760), (8152, 39400), (9850, 32608), (10190, 31520), (12608, 25475), (15760, 20380), (16304, 19700)]