640643584

素因数分解:

$2^9\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4157}}^1$

素因数の和:4225

約数の個数: 80

約数和(自身を含む): 1497279168

約数和(自身を除く): 856635584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 256, 301, 344, 448, 512, 602, 688, 896, 1204, 1376, 1792, 2408, 2752, 3584, 4157, 4816, 5504, 8314, 9632, 11008, 16628, 19264, 22016, 29099, 33256, 38528, 58198, 66512, 77056, 116396, 133024, 154112, 178751, 232792, 266048, 357502, 465584, 532096, 715004, 931168, 1064192, 1251257, 1430008, 1862336, 2128384, 2502514, 2860016, 3724672, 5005028, 5720032, 7449344, 10010056, 11440064, 14898688, 20020112, 22880128, 40040224, 45760256, 80080448, 91520512, 160160896, 320321792, 640643584]

約数ペア:

[(1, 640643584), (2, 320321792), (4, 160160896), (7, 91520512), (8, 80080448), (14, 45760256), (16, 40040224), (28, 22880128), (32, 20020112), (43, 14898688), (56, 11440064), (64, 10010056), (86, 7449344), (112, 5720032), (128, 5005028), (172, 3724672), (224, 2860016), (256, 2502514), (301, 2128384), (344, 1862336), (448, 1430008), (512, 1251257), (602, 1064192), (688, 931168), (896, 715004), (1204, 532096), (1376, 465584), (1792, 357502), (2408, 266048), (2752, 232792), (3584, 178751), (4157, 154112), (4816, 133024), (5504, 116396), (8314, 77056), (9632, 66512), (11008, 58198), (16628, 38528), (19264, 33256), (22016, 29099)]