208689620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:429

約数の個数: 96

約数和(自身を含む): 487111968

約数和(自身を除く): 278422348

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 53, 68, 74, 85, 106, 148, 170, 185, 212, 265, 313, 340, 370, 530, 626, 629, 740, 901, 1060, 1252, 1258, 1565, 1802, 1961, 2516, 3130, 3145, 3604, 3922, 4505, 5321, 6260, 6290, 7844, 9010, 9805, 10642, 11581, 12580, 16589, 18020, 19610, 21284, 23162, 26605, 33178, 33337, 39220, 46324, 53210, 57905, 66356, 66674, 82945, 106420, 115810, 133348, 165890, 166685, 196877, 231620, 282013, 331780, 333370, 393754, 564026, 613793, 666740, 787508, 984385, 1128052, 1227586, 1410065, 1968770, 2455172, 2820130, 3068965, 3937540, 5640260, 6137930, 10434481, 12275860, 20868962, 41737924, 52172405, 104344810, 208689620]

約数ペア:

[(1, 208689620), (2, 104344810), (4, 52172405), (5, 41737924), (10, 20868962), (17, 12275860), (20, 10434481), (34, 6137930), (37, 5640260), (53, 3937540), (68, 3068965), (74, 2820130), (85, 2455172), (106, 1968770), (148, 1410065), (170, 1227586), (185, 1128052), (212, 984385), (265, 787508), (313, 666740), (340, 613793), (370, 564026), (530, 393754), (626, 333370), (629, 331780), (740, 282013), (901, 231620), (1060, 196877), (1252, 166685), (1258, 165890), (1565, 133348), (1802, 115810), (1961, 106420), (2516, 82945), (3130, 66674), (3145, 66356), (3604, 57905), (3922, 53210), (4505, 46324), (5321, 39220), (6260, 33337), (6290, 33178), (7844, 26605), (9010, 23162), (9805, 21284), (10642, 19610), (11581, 18020), (12580, 16589)]