905484920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{1093}}^1$

素因数の和:1392

約数の個数: 64

約数和(自身を含む): 2067660000

約数和(自身を除く): 1162175080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 149, 278, 298, 556, 596, 695, 745, 1093, 1112, 1192, 1390, 1490, 2186, 2780, 2980, 4372, 5465, 5560, 5960, 8744, 10930, 20711, 21860, 41422, 43720, 82844, 103555, 151927, 162857, 165688, 207110, 303854, 325714, 414220, 607708, 651428, 759635, 814285, 828440, 1215416, 1302856, 1519270, 1628570, 3038540, 3257140, 6077080, 6514280, 22637123, 45274246, 90548492, 113185615, 181096984, 226371230, 452742460, 905484920]

約数ペア:

[(1, 905484920), (2, 452742460), (4, 226371230), (5, 181096984), (8, 113185615), (10, 90548492), (20, 45274246), (40, 22637123), (139, 6514280), (149, 6077080), (278, 3257140), (298, 3038540), (556, 1628570), (596, 1519270), (695, 1302856), (745, 1215416), (1093, 828440), (1112, 814285), (1192, 759635), (1390, 651428), (1490, 607708), (2186, 414220), (2780, 325714), (2980, 303854), (4372, 207110), (5465, 165688), (5560, 162857), (5960, 151927), (8744, 103555), (10930, 82844), (20711, 43720), (21860, 41422)]