205650170900

素因数分解:

$2^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{313}}^1\times {\mathrm{41849}}^1$

素因数の和:42333

約数の個数: 72

約数和(自身を含む): 450548897400

約数和(自身を除く): 244898726500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 157, 313, 314, 626, 628, 785, 1252, 1565, 1570, 3130, 3140, 3925, 6260, 7825, 7850, 15650, 15700, 31300, 41849, 49141, 83698, 98282, 167396, 196564, 209245, 245705, 418490, 491410, 836980, 982820, 1046225, 1228525, 2092450, 2457050, 4184900, 4914100, 6570293, 13098737, 13140586, 26197474, 26281172, 32851465, 52394948, 65493685, 65702930, 130987370, 131405860, 164257325, 261974740, 327468425, 328514650, 654936850, 657029300, 1309873700, 2056501709, 4113003418, 8226006836, 10282508545, 20565017090, 41130034180, 51412542725, 102825085450, 205650170900]

約数ペア:

[(1, 205650170900), (2, 102825085450), (4, 51412542725), (5, 41130034180), (10, 20565017090), (20, 10282508545), (25, 8226006836), (50, 4113003418), (100, 2056501709), (157, 1309873700), (313, 657029300), (314, 654936850), (626, 328514650), (628, 327468425), (785, 261974740), (1252, 164257325), (1565, 131405860), (1570, 130987370), (3130, 65702930), (3140, 65493685), (3925, 52394948), (6260, 32851465), (7825, 26281172), (7850, 26197474), (15650, 13140586), (15700, 13098737), (31300, 6570293), (41849, 4914100), (49141, 4184900), (83698, 2457050), (98282, 2092450), (167396, 1228525), (196564, 1046225), (209245, 982820), (245705, 836980), (418490, 491410)]