205979440

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{463}}^1$

素因数の和:626

約数の個数: 80

約数和(自身を含む): 492968448

約数和(自身を除く): 286989008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 83, 134, 166, 268, 332, 335, 415, 463, 536, 664, 670, 830, 926, 1072, 1328, 1340, 1660, 1852, 2315, 2680, 3320, 3704, 4630, 5360, 5561, 6640, 7408, 9260, 11122, 18520, 22244, 27805, 31021, 37040, 38429, 44488, 55610, 62042, 76858, 88976, 111220, 124084, 153716, 155105, 192145, 222440, 248168, 307432, 310210, 384290, 444880, 496336, 614864, 620420, 768580, 1240840, 1537160, 2481680, 2574743, 3074320, 5149486, 10298972, 12873715, 20597944, 25747430, 41195888, 51494860, 102989720, 205979440]

約数ペア:

[(1, 205979440), (2, 102989720), (4, 51494860), (5, 41195888), (8, 25747430), (10, 20597944), (16, 12873715), (20, 10298972), (40, 5149486), (67, 3074320), (80, 2574743), (83, 2481680), (134, 1537160), (166, 1240840), (268, 768580), (332, 620420), (335, 614864), (415, 496336), (463, 444880), (536, 384290), (664, 310210), (670, 307432), (830, 248168), (926, 222440), (1072, 192145), (1328, 155105), (1340, 153716), (1660, 124084), (1852, 111220), (2315, 88976), (2680, 76858), (3320, 62042), (3704, 55610), (4630, 44488), (5360, 38429), (5561, 37040), (6640, 31021), (7408, 27805), (9260, 22244), (11122, 18520)]