20121255816

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{127163}}^1$

素因数の和:127538

約数の個数: 64

約数和(自身を含む): 53103686400

約数和(自身を除く): 32982430584

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 347, 456, 694, 1041, 1388, 2082, 2776, 4164, 6593, 8328, 13186, 19779, 26372, 39558, 52744, 79116, 127163, 158232, 254326, 381489, 508652, 762978, 1017304, 1525956, 2416097, 3051912, 4832194, 7248291, 9664388, 14496582, 19328776, 28993164, 44125561, 57986328, 88251122, 132376683, 176502244, 264753366, 353004488, 529506732, 838385659, 1059013464, 1676771318, 2515156977, 3353542636, 5030313954, 6707085272, 10060627908, 20121255816]

約数ペア:

[(1, 20121255816), (2, 10060627908), (3, 6707085272), (4, 5030313954), (6, 3353542636), (8, 2515156977), (12, 1676771318), (19, 1059013464), (24, 838385659), (38, 529506732), (57, 353004488), (76, 264753366), (114, 176502244), (152, 132376683), (228, 88251122), (347, 57986328), (456, 44125561), (694, 28993164), (1041, 19328776), (1388, 14496582), (2082, 9664388), (2776, 7248291), (4164, 4832194), (6593, 3051912), (8328, 2416097), (13186, 1525956), (19779, 1017304), (26372, 762978), (39558, 508652), (52744, 381489), (79116, 254326), (127163, 158232)]