20123895740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8599}}^1\times {\mathrm{9001}}^1$

素因数の和:17622

約数の個数: 48

約数和(自身を含む): 45521313600

約数和(自身を除く): 25397417860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 8599, 9001, 17198, 18002, 34396, 36004, 42995, 45005, 85990, 90010, 111787, 117013, 171980, 180020, 223574, 234026, 447148, 468052, 558935, 585065, 1117870, 1170130, 2235740, 2340260, 77399599, 154799198, 309598396, 386997995, 773995990, 1006194787, 1547991980, 2012389574, 4024779148, 5030973935, 10061947870, 20123895740]

約数ペア:

[(1, 20123895740), (2, 10061947870), (4, 5030973935), (5, 4024779148), (10, 2012389574), (13, 1547991980), (20, 1006194787), (26, 773995990), (52, 386997995), (65, 309598396), (130, 154799198), (260, 77399599), (8599, 2340260), (9001, 2235740), (17198, 1170130), (18002, 1117870), (34396, 585065), (36004, 558935), (42995, 468052), (45005, 447148), (85990, 234026), (90010, 223574), (111787, 180020), (117013, 171980)]