19980672

素因数分解:

$2^7\times 3^1\times {\mathrm{61}}^1\times {\mathrm{853}}^1$

素因数の和:931

約数の個数: 64

約数和(自身を含む): 54006960

約数和(自身を除く): 34026288

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 61, 64, 96, 122, 128, 183, 192, 244, 366, 384, 488, 732, 853, 976, 1464, 1706, 1952, 2559, 2928, 3412, 3904, 5118, 5856, 6824, 7808, 10236, 11712, 13648, 20472, 23424, 27296, 40944, 52033, 54592, 81888, 104066, 109184, 156099, 163776, 208132, 312198, 327552, 416264, 624396, 832528, 1248792, 1665056, 2497584, 3330112, 4995168, 6660224, 9990336, 19980672]

約数ペア:

[(1, 19980672), (2, 9990336), (3, 6660224), (4, 4995168), (6, 3330112), (8, 2497584), (12, 1665056), (16, 1248792), (24, 832528), (32, 624396), (48, 416264), (61, 327552), (64, 312198), (96, 208132), (122, 163776), (128, 156099), (183, 109184), (192, 104066), (244, 81888), (366, 54592), (384, 52033), (488, 40944), (732, 27296), (853, 23424), (976, 20472), (1464, 13648), (1706, 11712), (1952, 10236), (2559, 7808), (2928, 6824), (3412, 5856), (3904, 5118)]