638557320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{280069}}^1$

素因数の和:280102

約数の個数: 64

約数和(自身を含む): 2016504000

約数和(自身を除く): 1377946680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 280069, 560138, 840207, 1120276, 1400345, 1680414, 2240552, 2800690, 3360828, 4201035, 5321311, 5601380, 6721656, 8402070, 10642622, 11202760, 15963933, 16804140, 21285244, 26606555, 31927866, 33608280, 42570488, 53213110, 63855732, 79819665, 106426220, 127711464, 159639330, 212852440, 319278660, 638557320]

約数ペア:

[(1, 638557320), (2, 319278660), (3, 212852440), (4, 159639330), (5, 127711464), (6, 106426220), (8, 79819665), (10, 63855732), (12, 53213110), (15, 42570488), (19, 33608280), (20, 31927866), (24, 26606555), (30, 21285244), (38, 16804140), (40, 15963933), (57, 11202760), (60, 10642622), (76, 8402070), (95, 6721656), (114, 5601380), (120, 5321311), (152, 4201035), (190, 3360828), (228, 2800690), (285, 2240552), (380, 1680414), (456, 1400345), (570, 1120276), (760, 840207), (1140, 560138), (2280, 280069)]