20565862540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{264139}}^1$

素因数の和:264394

約数の個数: 48

約数和(自身を含む): 45928663200

約数和(自身を除く): 25362800660

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 229, 340, 458, 916, 1145, 2290, 3893, 4580, 7786, 15572, 19465, 38930, 77860, 264139, 528278, 1056556, 1320695, 2641390, 4490363, 5282780, 8980726, 17961452, 22451815, 44903630, 60487831, 89807260, 120975662, 241951324, 302439155, 604878310, 1028293127, 1209756620, 2056586254, 4113172508, 5141465635, 10282931270, 20565862540]

約数ペア:

[(1, 20565862540), (2, 10282931270), (4, 5141465635), (5, 4113172508), (10, 2056586254), (17, 1209756620), (20, 1028293127), (34, 604878310), (68, 302439155), (85, 241951324), (170, 120975662), (229, 89807260), (340, 60487831), (458, 44903630), (916, 22451815), (1145, 17961452), (2290, 8980726), (3893, 5282780), (4580, 4490363), (7786, 2641390), (15572, 1320695), (19465, 1056556), (38930, 528278), (77860, 264139)]