289304320

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2861}}^1$

素因数の和:2961

約数の個数: 72

約数和(自身を含む): 701991360

約数和(自身を除く): 412687040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 632, 640, 790, 1264, 1280, 1580, 2528, 2861, 3160, 5056, 5722, 6320, 10112, 11444, 12640, 14305, 20224, 22888, 25280, 28610, 45776, 50560, 57220, 91552, 101120, 114440, 183104, 226019, 228880, 366208, 452038, 457760, 732416, 904076, 915520, 1130095, 1808152, 1831040, 2260190, 3616304, 3662080, 4520380, 7232608, 9040760, 14465216, 18081520, 28930432, 36163040, 57860864, 72326080, 144652160, 289304320]

約数ペア:

[(1, 289304320), (2, 144652160), (4, 72326080), (5, 57860864), (8, 36163040), (10, 28930432), (16, 18081520), (20, 14465216), (32, 9040760), (40, 7232608), (64, 4520380), (79, 3662080), (80, 3616304), (128, 2260190), (158, 1831040), (160, 1808152), (256, 1130095), (316, 915520), (320, 904076), (395, 732416), (632, 457760), (640, 452038), (790, 366208), (1264, 228880), (1280, 226019), (1580, 183104), (2528, 114440), (2861, 101120), (3160, 91552), (5056, 57220), (5722, 50560), (6320, 45776), (10112, 28610), (11444, 25280), (12640, 22888), (14305, 20224)]