859613860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{20399}}^1$

素因数の和:20465

約数の個数: 72

約数和(自身を含む): 2148854400

約数和(自身を除く): 1289240540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 860, 980, 1204, 1505, 2107, 3010, 4214, 6020, 8428, 10535, 20399, 21070, 40798, 42140, 81596, 101995, 142793, 203990, 285586, 407980, 571172, 713965, 877157, 999551, 1427930, 1754314, 1999102, 2855860, 3508628, 3998204, 4385785, 4997755, 6140099, 8771570, 9995510, 12280198, 17543140, 19991020, 24560396, 30700495, 42980693, 61400990, 85961386, 122801980, 171922772, 214903465, 429806930, 859613860]

約数ペア:

[(1, 859613860), (2, 429806930), (4, 214903465), (5, 171922772), (7, 122801980), (10, 85961386), (14, 61400990), (20, 42980693), (28, 30700495), (35, 24560396), (43, 19991020), (49, 17543140), (70, 12280198), (86, 9995510), (98, 8771570), (140, 6140099), (172, 4997755), (196, 4385785), (215, 3998204), (245, 3508628), (301, 2855860), (430, 1999102), (490, 1754314), (602, 1427930), (860, 999551), (980, 877157), (1204, 713965), (1505, 571172), (2107, 407980), (3010, 285586), (4214, 203990), (6020, 142793), (8428, 101995), (10535, 81596), (20399, 42140), (21070, 40798)]