209320804

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1993}}^1$

素因数の和:2057

約数の個数: 72

約数和(自身を含む): 475241984

約数和(自身を除く): 265921180

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 121, 124, 154, 217, 242, 308, 341, 434, 484, 682, 847, 868, 1364, 1694, 1993, 2387, 3388, 3751, 3986, 4774, 7502, 7972, 9548, 13951, 15004, 21923, 26257, 27902, 43846, 52514, 55804, 61783, 87692, 105028, 123566, 153461, 241153, 247132, 306922, 432481, 482306, 613844, 679613, 864962, 964612, 1359226, 1688071, 1729924, 2718452, 3376142, 4757291, 6752284, 7475743, 9514582, 14951486, 19029164, 29902972, 52330201, 104660402, 209320804]

約数ペア:

[(1, 209320804), (2, 104660402), (4, 52330201), (7, 29902972), (11, 19029164), (14, 14951486), (22, 9514582), (28, 7475743), (31, 6752284), (44, 4757291), (62, 3376142), (77, 2718452), (121, 1729924), (124, 1688071), (154, 1359226), (217, 964612), (242, 864962), (308, 679613), (341, 613844), (434, 482306), (484, 432481), (682, 306922), (847, 247132), (868, 241153), (1364, 153461), (1694, 123566), (1993, 105028), (2387, 87692), (3388, 61783), (3751, 55804), (3986, 52514), (4774, 43846), (7502, 27902), (7972, 26257), (9548, 21923), (13951, 15004)]