28122880

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 68285952

約数和(自身を除く): 40163072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 173, 254, 256, 320, 346, 508, 635, 640, 692, 865, 1016, 1270, 1280, 1384, 1730, 2032, 2540, 2768, 3460, 4064, 5080, 5536, 6920, 8128, 10160, 11072, 13840, 16256, 20320, 21971, 22144, 27680, 32512, 40640, 43942, 44288, 55360, 81280, 87884, 109855, 110720, 162560, 175768, 219710, 221440, 351536, 439420, 703072, 878840, 1406144, 1757680, 2812288, 3515360, 5624576, 7030720, 14061440, 28122880]

約数ペア:

[(1, 28122880), (2, 14061440), (4, 7030720), (5, 5624576), (8, 3515360), (10, 2812288), (16, 1757680), (20, 1406144), (32, 878840), (40, 703072), (64, 439420), (80, 351536), (127, 221440), (128, 219710), (160, 175768), (173, 162560), (254, 110720), (256, 109855), (320, 87884), (346, 81280), (508, 55360), (635, 44288), (640, 43942), (692, 40640), (865, 32512), (1016, 27680), (1270, 22144), (1280, 21971), (1384, 20320), (1730, 16256), (2032, 13840), (2540, 11072), (2768, 10160), (3460, 8128), (4064, 6920), (5080, 5536)]