18780989812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2273}}^1\times {\mathrm{8363}}^1$

素因数の和:10672

約数の個数: 48

約数和(自身を含む): 37278682560

約数和(自身を除く): 18497692748

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 2273, 4546, 8363, 9092, 16726, 29549, 33452, 43187, 59098, 86374, 108719, 118196, 158897, 172748, 217438, 317794, 434876, 561431, 635588, 1122862, 2065661, 2245724, 4131322, 8262644, 19009099, 38018198, 76036396, 247118287, 361172881, 494236574, 722345762, 988473148, 1444691524, 4695247453, 9390494906, 18780989812]

約数ペア:

[(1, 18780989812), (2, 9390494906), (4, 4695247453), (13, 1444691524), (19, 988473148), (26, 722345762), (38, 494236574), (52, 361172881), (76, 247118287), (247, 76036396), (494, 38018198), (988, 19009099), (2273, 8262644), (4546, 4131322), (8363, 2245724), (9092, 2065661), (16726, 1122862), (29549, 635588), (33452, 561431), (43187, 434876), (59098, 317794), (86374, 217438), (108719, 172748), (118196, 158897)]