28305602020

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1069}}^1\times {\mathrm{2897}}^1$

素因数の和:4432

約数の個数: 48

約数和(自身を含む): 59648142960

約数和(自身を除く): 31342540940

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1069, 1828, 2138, 2285, 2897, 4276, 4570, 5345, 5794, 9140, 10690, 11588, 14485, 21380, 28970, 57940, 488533, 977066, 1323929, 1954132, 2442665, 2647858, 3096893, 4885330, 5295716, 6193786, 6619645, 9770660, 12387572, 13239290, 15484465, 26478580, 30968930, 61937860, 1415280101, 2830560202, 5661120404, 7076400505, 14152801010, 28305602020]

約数ペア:

[(1, 28305602020), (2, 14152801010), (4, 7076400505), (5, 5661120404), (10, 2830560202), (20, 1415280101), (457, 61937860), (914, 30968930), (1069, 26478580), (1828, 15484465), (2138, 13239290), (2285, 12387572), (2897, 9770660), (4276, 6619645), (4570, 6193786), (5345, 5295716), (5794, 4885330), (9140, 3096893), (10690, 2647858), (11588, 2442665), (14485, 1954132), (21380, 1323929), (28970, 977066), (57940, 488533)]