209380912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{52981}}^1$

素因数の和:53021

約数の個数: 40

約数和(自身を含む): 459883760

約数和(自身を除く): 250502848

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 52981, 105962, 211924, 423848, 688753, 847696, 1006639, 1377506, 2013278, 2755012, 4026556, 5510024, 8053112, 11020048, 13086307, 16106224, 26172614, 52345228, 104690456, 209380912]

約数ペア:

[(1, 209380912), (2, 104690456), (4, 52345228), (8, 26172614), (13, 16106224), (16, 13086307), (19, 11020048), (26, 8053112), (38, 5510024), (52, 4026556), (76, 2755012), (104, 2013278), (152, 1377506), (208, 1006639), (247, 847696), (304, 688753), (494, 423848), (988, 211924), (1976, 105962), (3952, 52981)]