859614920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1\times {\mathrm{443}}^1$

素因数の和:942

約数の個数: 64

約数和(自身を含む): 1958040000

約数和(自身を除く): 1098425080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 349, 443, 556, 695, 698, 886, 1112, 1390, 1396, 1745, 1772, 2215, 2780, 2792, 3490, 3544, 4430, 5560, 6980, 8860, 13960, 17720, 48511, 61577, 97022, 123154, 154607, 194044, 242555, 246308, 307885, 309214, 388088, 485110, 492616, 615770, 618428, 773035, 970220, 1231540, 1236856, 1546070, 1940440, 2463080, 3092140, 6184280, 21490373, 42980746, 85961492, 107451865, 171922984, 214903730, 429807460, 859614920]

約数ペア:

[(1, 859614920), (2, 429807460), (4, 214903730), (5, 171922984), (8, 107451865), (10, 85961492), (20, 42980746), (40, 21490373), (139, 6184280), (278, 3092140), (349, 2463080), (443, 1940440), (556, 1546070), (695, 1236856), (698, 1231540), (886, 970220), (1112, 773035), (1390, 618428), (1396, 615770), (1745, 492616), (1772, 485110), (2215, 388088), (2780, 309214), (2792, 307885), (3490, 246308), (3544, 242555), (4430, 194044), (5560, 154607), (6980, 123154), (8860, 97022), (13960, 61577), (17720, 48511)]